Facts and figures about Scotland's sea area (coastline length, sea area in sq kms)

1421300Facts and figures about Scotland's sea area (coastline length, sea area in sq kms)Edited by LiamM.11004677data_sourceund1446151909170109842800170109842857How long is the coastline of Scotland? We estimate Scotland’s coastline to be 18,743 km in length along the high water line (“mean high water spring” or MHWS) Coastlines are difficult to measure accurately because of the <a href="https://sketchplanations.com/the-coastline-paradox" target="_blank">coastline paradox</a>.  All published figures are estimated, and will vary depending on the size of the ruler used to measure (the scale of the map).  Source: <a href="https://osdatahub.os.uk/downloads/open/BoundaryLine" target="_blank">Ordnance Survey Boundary-Line</a>   How big are Scotland’s seas? We estimate the area of Scotland’s seas to be 462,315 km2 using the definition of the “Scottish zone” in the <a href="http://www.legislation.gov.uk/ukpga/1998/46/section/126" target="_blank">Scotland Act 1998</a> (see table below for other definitions).  Scotland’s seas are nearly six times larger than the land area of Scotland. The figure above reflects the UK <a href="https://www.un.org/depts/los/convention_agreements/texts/unclos/part5.htm" target="_blank">Exclusive Economic Zone</a> (EEZ) adjacent to Scotland, which accounts for 63% of the UK EEZ. The area of sea can vary depending on the <a href="https://www.gislounge.com/map-projection/" target="_blank">map projection</a> and coastline scale used for the calculations. A more detailed coastline can introduce variations and additional islands and skerries. Sources: <a href="https://datahub.admiralty.co.uk/portal/apps/sites/#/marine-data-portal" target="_blank">UKHO</a> Maritime Limits | <a href="https://www.sepa.org.uk/environment/environmental-data/" target="_blank">SEPA Transitional and Coastal Water Bodies</a> | <a href="https://jncc.gov.uk/our-work/uk-marine-protected-area-network-statistics/">JNCC MPA Statistics</a>.   How many islands does Scotland have? We estimate Scotland to have over 900 islands, of which 118 are inhabited. The most remote Scottish island is Rockall, which is around 300 km from Hirta (Hiort) in the St Kilda archipelago. Source: <a href="https://www.nrscotland.gov.uk/statistics-and-data/geography/our-products/other-national-records-of-scotland-nrs-geographies-datasets" target="_blank">National Records of Scotland (NRS)</a>   Which part of Scotland is furthest from the sea? We estimate the furthest point from the sea to be Glen Quoich near Braemar, which is around 65 km from the sea. Source: <a href="https://osdatahub.os.uk/downloads/open/OpenNames" target="_blank">Ordnance Survey Open Names</a>.   How deep are Scotland’s seas? The deepest point in the Scottish zone is the Rockall Trough, with a depth of around 2,500m.  On the extended continental shelf beyond Rockall, the deepest point in the Scottish offshore region is over 3,000 m deep.  (For comparison, the summit of Ben Nevis is 1,345 m above sea level.) The average depth of the Scottish zone is around 600 m below sea level, or nearly 1 km (903 m) including the continental shelf limits. Source: <a href="https://www.emodnet-bathymetry.eu/" target="_blank">EMODnet 1/16 ArcMinute DEM </a>    How many Marine Protected Areas are in Scotland? How much of Scottish seas are covered by Marine Protected Areas? As of March 2022, there are 233 sites for nature conservation covering 228,118 km2 or 37% of the continental shelf area adjacent to Scotland. Sites can have overlapping designations.  <ul> <li>58 Special Areas of Conservation (SACs) for European protected species and habitats. </li> <li>58 Special Protection Areas (SPAs) for birds.</li> <li>36 Nature Conservation Marine Protected Areas for marine species, habitats, and geological features.</li> <li>16 Ramsar sites for wetlands of international importance.</li> <li>65 Sites of Special Scientific Interest (SSSIs) for species, habitats, and geological features.</li> </ul> These figure does not include other types of MPA such as Historic MPAs, Demonstration & Research MPAs, or marine management areas such as fisheries-specific restrictions. Source: <a href="https://jncc.gov.uk/our-work/uk-marine-protected-area-datasets-for-download/" target="_blank">JNCC</a> and <a href="https://www.gov.scot/policies/marine-environment/marine-protected-areas/">Scottish Government</a>   How long are Scotland’s rivers and streams? Scotland has more than 125,000 km of rivers and streams varying from small highland burns to deep, wide lowland rivers such as the Tay. There is also a 220 km canal network in Scotland. There are over 25,500 lochs in Scotland, with the Western Isles and Sutherland having the highest concentration of lochs. Source: <a href="https://www.environment.gov.scot/our-environment/water/scotland-s-freshwater/" target="_blank">SEPA</a>   Table 1: Sea areas of the waters adjacent to Scotland, by <a href="https://www.imo.org/en/OurWork/Legal/Pages/UnitedNationsConventionOnTheLawOfTheSea.aspx" target="_blank">United Nations Convention on the Law of the Sea</a> definitions <table border="0" cellpadding="1" cellspacing="1"> <thead> <tr> <th class="rteleft" scope="col" style="width:15%">Illustrative Map</th> <th class="rteleft" scope="col" style="width:20%">Landward Boundary</th> <th class="rteleft" scope="col" style="width:20%">Seaward Boundary</th> <th class="rteleft" scope="col">Description</th> <th class="rteleft" scope="col">Area (km2)</th> </tr> </thead> <tbody> <tr> <td>[[{"fid":"213191","view_mode":"default","fields":{"format":"default","field_file_image_alt_text[und][0][value]":"Illustrative map of the intertidal area around Scotland","field_file_image_title_text[und][0][value]":false,"external_url":""},"type":"media","field_deltas":{"13":{"format":"default","field_file_image_alt_text[und][0][value]":"Illustrative map of the intertidal area around Scotland","field_file_image_title_text[und][0][value]":false,"external_url":""}},"attributes":{"alt":"Illustrative map of the intertidal area around Scotland","style":"float:right; height:100px; width:71px","class":"file-default media-element","data-delta":"13"}}]]</td> <td>Mean High Water Spring (MHWS)</td> <td>Mean Low Water Spring (MLWS)</td> <td> <ul> <li>Intertidal area</li> </ul> </td> <td>1,202</td> </tr> <tr> <td>[[{"fid":"201888","view_mode":"default","fields":{"format":"default","field_file_image_alt_text[und][0][value]":"Internal waters adjacent to Scotland","field_file_image_title_text[und][0][value]":false,"external_url":""},"type":"media","field_deltas":{"10":{"format":"default","field_file_image_alt_text[und][0][value]":"Internal waters adjacent to Scotland","field_file_image_title_text[und][0][value]":false,"external_url":""}},"attributes":{"alt":"Internal waters adjacent to Scotland","style":"float:right; height:100px; width:66px","class":"file-default media-element","data-delta":"10"}}]]</td> <td>MHWS</td> <td>Baseline of the Territorial Sea (TS)</td> <td> <ul> <li>Internal Waters (UNCLOS)</li> <li>“Scottish onshore area” in the <a href="https://www.legislation.gov.uk/ukpga/1998/46/schedule/5/part/II/crossheading/head-d-energy_paragraph-wrapper34n2" target="_blank">Scotland Act 1998</a></li> <li>Territorial Sea baseline is defined in <a href="https://www.legislation.gov.uk/uksi/2014/1353/made">The Territorial Sea (Baselines) Order 2014</a></li> </ul> </td> <td>34,920</td> </tr> <tr> <td>[[{"fid":"201882","view_mode":"default","fields":{"format":"default","field_file_image_alt_text[und][0][value]":"Coastal and transitional waters (3NM) adjacent to Scotland","field_file_image_title_text[und][0][value]":false,"external_url":""},"type":"media","field_deltas":{"6":{"format":"default","field_file_image_alt_text[und][0][value]":"Coastal and transitional waters (3NM) adjacent to Scotland","field_file_image_title_text[und][0][value]":false,"external_url":""}},"attributes":{"alt":"Coastal and transitional waters (3NM) adjacent to Scotland","style":"float:right; height:100px; width:100px","class":"file-default media-element","data-delta":"6"}}]]</td> <td>MHWS</td> <td>3NM from baseline</td> <td> <ul> <li>Internal Waters + Territorial Sea (part) (UNCLOS)</li> <li>Combined extent of “Transitional” and “Coastal” waters in the <a href="https://www.legislation.gov.uk/asp/2003/3/section/3" target="_blank">Water Environment and Water Services (Scotland) Act 2003</a></li> <li>Territorial Sea baseline is defined in <a href="https://www.legislation.gov.uk/uksi/2014/1353/made">The Territorial Sea (Baselines) Order 2014</a></li> </ul> </td> <td>48,710</td> </tr> <tr> <td>[[{"fid":"201881","view_mode":"default","fields":{"format":"default","field_file_image_alt_text[und][0][value]":"Inshore waters (6NM) adjacent to Scotland","field_file_image_title_text[und][0][value]":false,"external_url":""},"type":"media","field_deltas":{"5":{"format":"default","field_file_image_alt_text[und][0][value]":"Inshore waters (6NM) adjacent to Scotland","field_file_image_title_text[und][0][value]":false,"external_url":""}},"attributes":{"alt":"Inshore waters (6NM) adjacent to Scotland","style":"float:right; height:100px; width:100px","class":"file-default media-element","data-delta":"5"}}]]</td> <td>MHWS</td> <td>6NM from baseline</td> <td> <ul> <li>Internal Waters + Territorial Sea (part) (UNCLOS)</li> <li>“Scottish inshore waters” in the <a href="https://www.legislation.gov.uk/ukpga/1984/26/section/9" target="_blank">Inshore Fishing (Scotland) Act 1984</a></li> <li>Territorial Sea baseline is defined in <a href="https://www.legislation.gov.uk/uksi/2014/1353/made">The Territorial Sea (Baselines) Order 2014</a></li> </ul> </td> <td>62,212</td> </tr> <tr> <td>[[{"fid":"201878","view_mode":"default","fields":{"format":"default","field_file_image_alt_text[und][0][value]":"The territorial sea (12NM) limit adjacent to Scotland","field_file_image_title_text[und][0][value]":false,"external_url":""},"type":"media","field_deltas":{"2":{"format":"default","field_file_image_alt_text[und][0][value]":"The territorial sea (12NM) limit adjacent to Scotland","field_file_image_title_text[und][0][value]":false,"external_url":""}},"attributes":{"alt":"The territorial sea (12NM) limit adjacent to Scotland","style":"float:right; height:100px; width:100px","class":"file-default media-element","data-delta":"2"}}]]</td> <td>MHWS</td> <td>Territorial Sea Limit (up to 12NM from baseline)</td> <td> <ul> <li>Internal Waters + Territorial Sea (UNCLOS)</li> <li>“Scotland” in the <a href="http://www.legislation.gov.uk/ukpga/1998/46/section/126" target="_blank">Scotland Act 1998</a></li> <li>“Scottish inshore region” in the <a href="http://www.legislation.gov.uk/ukpga/2009/23/section/322" target="_blank">Marine and Coastal Access Act 2009</a></li> <li>“Scottish marine area” in the <a href="https://www.legislation.gov.uk/asp/2010/5/section/1" target="_blank">Marine (Scotland) Act 2010</a></li> <li>Territorial Sea baseline is defined in <a href="https://www.legislation.gov.uk/uksi/2014/1353/made">The Territorial Sea (Baselines) Order 2014</a></li> </ul> </td> <td>90,400</td> </tr> <tr> <td>[[{"fid":"201879","view_mode":"default","fields":{"format":"default","field_file_image_alt_text[und][0][value]":"The Exclusive Economic Zone (EEZ) adjacent to Scotland","field_file_image_title_text[und][0][value]":false,"external_url":""},"type":"media","field_deltas":{"3":{"format":"default","field_file_image_alt_text[und][0][value]":"The Exclusive Economic Zone (EEZ) adjacent to Scotland","field_file_image_title_text[und][0][value]":false,"external_url":""}},"attributes":{"alt":"The Exclusive Economic Zone (EEZ) adjacent to Scotland","style":"float:right; height:100px; width:100px","class":"file-default media-element","data-delta":"3"}}]]</td> <td>MHWS</td> <td>Exclusive Economic Zone Limit (up to 200NM from baseline)</td> <td> <ul> <li>Internal Waters + Territorial Sea + EEZ (UNCLOS)</li> <li>“Scottish Zone” in the <a href="http://www.legislation.gov.uk/ukpga/1998/46/section/126" target="_blank">Scotland Act 1998</a></li> <li>Exclusive Economic Zone is defined in <a href="https://www.legislation.gov.uk/uksi/2013/3161/contents/made">The Exclusive Economic Zone Order 2013</a></li> </ul> </td> <td>462,315</td> </tr> <tr> <td>[[{"fid":"201880","view_mode":"default","fields":{"format":"default","field_file_image_alt_text[und][0][value]":"The Continental Shelf limits adjacent to Scotland","field_file_image_title_text[und][0][value]":false,"external_url":""},"type":"media","field_deltas":{"4":{"format":"default","field_file_image_alt_text[und][0][value]":"The Continental Shelf limits adjacent to Scotland","field_file_image_title_text[und][0][value]":false,"external_url":""}},"attributes":{"alt":"The Continental Shelf limits adjacent to Scotland","style":"float:right; height:100px; width:100px","class":"file-default media-element","data-delta":"4"}}]]</td> <td>MHWS</td> <td>Continental Shelf Limits (up to 350NM from baseline)</td> <td> <ul> <li>Internal Waters + Territorial Sea + Continental Shelf (UNCLOS)</li> <li>Combined extent of “Scottish inshore region” and “Scottish offshore region” in the <a href="http://www.legislation.gov.uk/ukpga/2009/23/section/322" target="_blank">Marine and Coastal Access Act 2009</a></li> <li>The Continental Shelf limit is defined in <a href="https://www.legislation.gov.uk/uksi/2013/3162/contents/made">The Continental Shelf (Designation of Areas) Order 2013</a></li> </ul> </td> <td>617,643</td> </tr> <tr> <td>[[{"fid":"201890","view_mode":"default","fields":{"format":"default","field_file_image_alt_text[und][0][value]":"Territorial sea, outside internal waters, adjacent to Scotland","field_file_image_title_text[und][0][value]":false,"external_url":""},"type":"media","field_deltas":{"12":{"format":"default","field_file_image_alt_text[und][0][value]":"Territorial sea, outside internal waters, adjacent to Scotland","field_file_image_title_text[und][0][value]":false,"external_url":""}},"attributes":{"alt":"Territorial sea, outside internal waters, adjacent to Scotland","style":"float:right; height:100px; width:70px","class":"file-default media-element","data-delta":"12"}}]]</td> <td>Baseline</td> <td>Territorial Sea Limit</td> <td> <ul> <li>Territorial Sea (UNCLOS)</li> <li>Territorial Sea baseline is defined in <a href="https://www.legislation.gov.uk/uksi/2014/1353/made">The Territorial Sea (Baselines) Order 2014</a></li> </ul> </td> <td>55,480</td> </tr> <tr> <td>[[{"fid":"201885","view_mode":"default","fields":{"format":"default","field_file_image_alt_text[und][0][value]":"The exclusive economic zone, outside territorial sea, adjacent to Scotland","field_file_image_title_text[und][0][value]":false,"external_url":""},"type":"media","field_deltas":{"8":{"format":"default","field_file_image_alt_text[und][0][value]":"The exclusive economic zone, outside territorial sea, adjacent to Scotland","field_file_image_title_text[und][0][value]":false,"external_url":""}},"attributes":{"alt":"The exclusive economic zone, outside territorial sea, adjacent to Scotland","style":"float:right; height:100px; width:100px","class":"file-default media-element","data-delta":"8"}}]]</td> <td>Territorial Sea Limit</td> <td>Exclusive Economic Zone Limit</td> <td> <ul> <li>Exclusive Economic Zone (UNCLOS)</li> <li>Territorial Sea baseline is defined in <a href="https://www.legislation.gov.uk/uksi/2014/1353/made">The Territorial Sea (Baselines) Order 2014</a></li> <li>Exclusive Economic Zone is defined in <a href="https://www.legislation.gov.uk/uksi/2013/3161/contents/made">The Exclusive Economic Zone Order 2013</a></li> </ul> </td> <td>371,915</td> </tr> <tr> <td>[[{"fid":"201886","view_mode":"default","fields":{"format":"default","field_file_image_alt_text[und][0][value]":"The continental shelf limits, outside territorial sea, adjacent to Scotland","field_file_image_title_text[und][0][value]":false,"external_url":""},"type":"media","field_deltas":{"9":{"format":"default","field_file_image_alt_text[und][0][value]":"The continental shelf limits, outside territorial sea, adjacent to Scotland","field_file_image_title_text[und][0][value]":false,"external_url":""}},"attributes":{"alt":"The continental shelf limits, outside territorial sea, adjacent to Scotland","style":"float:right; height:100px; width:100px","class":"file-default media-element","data-delta":"9"}}]]</td> <td>Territorial Sea Limit</td> <td>Continental Shelf Limits</td> <td> <ul> <li>Continental Shelf (UNCLOS)</li> <li>“Scottish offshore region” in the <a href="http://www.legislation.gov.uk/ukpga/2009/23/section/322" target="_blank">Marine and Coastal Access Act 2009</a></li> <li>Territorial Sea baseline is defined in <a href="https://www.legislation.gov.uk/uksi/2014/1353/made">The Territorial Sea (Baselines) Order 2014</a></li> <li>The Continental Shelf limit is defined in <a href="https://www.legislation.gov.uk/uksi/2013/3162/contents/made">The Continental Shelf (Designation of Areas) Order 2013</a></li> </ul> </td> <td>527,243</td> </tr> <tr> <td>[[{"fid":"213192","view_mode":"default","fields":{"format":"default","field_file_image_alt_text[und][0][value]":"The Special Area agreed between the UK and Kingdom of Denmark on behalf of the Faroe Islands","field_file_image_title_text[und][0][value]":false,"external_url":""},"type":"media","field_deltas":{"14":{"format":"default","field_file_image_alt_text[und][0][value]":"The Special Area agreed between the UK and Kingdom of Denmark on behalf of the Faroe Islands","field_file_image_title_text[und][0][value]":false,"external_url":""}},"attributes":{"alt":"The Special Area agreed between the UK and Kingdom of Denmark on behalf of the Faroe Islands","style":"float:right; height:100px; width:100px","class":"file-default media-element","data-delta":"14"}}]]</td> <td>Schedule B of the The Exclusive Economic Zone Order 2013</td> <td>Schedule A of the The Exclusive Economic Zone Order 2013</td> <td> <ul> <li>The "Special Area" defined in the <a href="https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/350908/42904_Cm_8934_accessible.pdf">1999 Agreement between the UK, Kingdom of Denmark, and Faroe Islands</a></li> <li>Exclusive Economic Zone is defined in <a href="https://www.legislation.gov.uk/uksi/2013/3161/contents/made">The Exclusive Economic Zone Order 2013</a></li> </ul> </td> <td>8,014</td> </tr> </tbody> </table> NM = nautical mile   Table 2: Sea area, coastlines and depths of the Scottish Marine Regions and Offshore Marine Regions (to Continental Shelf Limits) <table border="0" cellpadding="1" cellspacing="1"> <thead> <tr> <th class="rteleft" scope="row">Scottish Marine Area</th> <th class="rteleft" style="width:10%">Region</th> <th class="rteleft" style="width:10%">Area (km2)</th> <th class="rteleft">Distance along MHWS (km)*</th> <th class="rteleft">Deepest Point (m)</th> <th class="rteleft">Shallowest Point (m)</th> <th class="rteleft">Average Depth (m)</th> </tr> <tr> <td scope="row">Forth and Tay</td> <td>Inshore</td> <td>4,487</td> <td>775</td> <td>97</td> <td>MHWS</td> <td>39</td> </tr> <tr> <td scope="row">North East</td> <td>Inshore</td> <td>3,153</td> <td>307</td> <td>224</td> <td>MHWS</td> <td>63</td> </tr> <tr> <td scope="row">Moray Firth</td> <td>Inshore</td> <td>5,876</td> <td>985</td> <td>256</td> <td>MHWS</td> <td>50</td> </tr> <tr> <td scope="row">Orkney Islands</td> <td>Inshore</td> <td>9,256</td> <td>1,228</td> <td>195</td> <td>MHWS</td> <td>65</td> </tr> <tr> <td scope="row">Shetland Isles</td> <td>Inshore</td> <td>12,309</td> <td>2,382</td> <td>188</td> <td>MHWS</td> <td>93</td> </tr> <tr> <td scope="row">North Coast</td> <td>Inshore</td> <td>2,443</td> <td>544</td> <td>124</td> <td>MHWS</td> <td>68</td> </tr> <tr> <td scope="row">West Highlands</td> <td>Inshore</td> <td>10,420</td> <td>3,656</td> <td>322</td> <td>MHWS</td> <td>82</td> </tr> <tr> <td scope="row">Outer Hebrides</td> <td>Inshore</td> <td>20,848</td> <td>3,915</td> <td>268</td> <td>MHWS</td> <td>88</td> </tr> <tr> <td scope="row">Argyll</td> <td>Inshore</td> <td>12,044</td> <td>2,918</td> <td>320</td> <td>MHWS</td> <td>66</td> </tr> <tr> <td scope="row">Clyde</td> <td>Inshore</td> <td>4,279</td> <td>1,256</td> <td>198</td> <td>MHWS</td> <td>58</td> </tr> <tr> <td scope="row">Solway</td> <td>Inshore</td> <td>3,724</td> <td>777</td> <td>314</td> <td>MHWS</td> <td>52</td> </tr> <tr> <td scope="row">Long Forties</td> <td>Offshore</td> <td>34,508</td> <td>n/a</td> <td>178</td> <td>32</td> <td>80</td> </tr> <tr> <td scope="row">Fladen and Moray Firth Offshore</td> <td>Offshore</td> <td>40,261</td> <td>n/a</td> <td>248</td> <td>35</td> <td>111</td> </tr> <tr> <td scope="row">East Shetland Shelf</td> <td>Offshore</td> <td>33,713</td> <td>n/a</td> <td>175</td> <td>58</td> <td>128</td> </tr> <tr> <td scope="row">North and West Shetland Shelf</td> <td>Offshore</td> <td>28,676</td> <td>n/a</td> <td>623</td> <td>72</td> <td>254</td> </tr> <tr> <td scope="row">Faroe Shetland Channel</td> <td>Offshore</td> <td>42,752</td> <td>n/a</td> <td>2,418</td> <td>343</td> <td>1,304</td> </tr> <tr> <td scope="row">North Scotland Shelf</td> <td>Offshore</td> <td>28,820</td> <td>n/a</td> <td>1,073</td> <td>15</td> <td>213</td> </tr> <tr> <td scope="row">Hebrides Shelf</td> <td>Offshore</td> <td>30,437</td> <td>n/a</td> <td>1,359</td> <td>19</td> <td>241</td> </tr> <tr> <td scope="row">Bailey</td> <td>Offshore</td> <td>74,797</td> <td>n/a</td> <td>2,360</td> <td>322</td> <td>1,365</td> </tr> <tr> <td scope="row">Hatton</td> <td>Offshore</td> <td>155,215</td> <td>n/a</td> <td>3,185</td> <td>158</td> <td>1,783</td> </tr> <tr> <td scope="row">Rockall **</td> <td>Offshore </td> <td>59,625</td> <td>#</td> <td>2,576</td> <td>MHWS</td> <td>1,386</td> </tr> <tr> <td scope="row">Total</td> <td> </td> <td>617,643</td> <td>18,743</td> <td>3,185</td> <td>MHWS</td> <td>903</td> </tr> <tr> <td scope="row">Scottish Zone for comparison</td> <td> </td> <td>462,315</td> <td>18,743</td> <td>2,576</td> <td>MHWS</td> <td>611</td> </tr> </thead> </table> * Derived from OS Boundary-Line and subject to the <a href="https://sketchplanations.com/the-coastline-paradox" target="_blank">coastline paradox</a> ** The Rockall assessment area also includes the inshore area within the territorial sea. The territorial sea around Rockall is part of the “Scottish inshore region” under the <a href="http://www.legislation.gov.uk/ukpga/2009/23/section/322" target="_blank">Marine and Coastal Access Act 2009</a>, but is not defined as a Scottish Marine Region in the <a href="https://www.legislation.gov.uk/ssi/2015/193/made">The Scottish Marine Regions Order 2015</a>. # The coastline of Rockall is not mapped at a suitable scale Sources: <a href="https://www.oceanwise.eu/data/dem/" target="_blank">OceanWise 1 ArcSecond DEM</a> | <a href="https://www.emodnet-bathymetry.eu/" target="_blank">EMODnet 1/16 ArcMinute DEM </a> | <a href="https://osdatahub.os.uk/downloads/open/BoundaryLine" target="_blank">Ordnance Survey Boundary-Line</a> | <a href="https://datahub.admiralty.co.uk/portal/apps/sites/#/marine-data-portal" target="_blank">UKHO</a> Maritime Limits   Table 3: Sea areas of UK Countries and Crown Dependencies <table border="0" cellpadding="1" cellspacing="1" style="width:500px"> <thead> <tr> <th class="rteleft" scope="col" style="width:60%">Description</th> <th class="rteleft" scope="col">Area (km2)</th> <th class="rteleft" scope="col">Approx. %</th> </tr> </thead> <tbody> <tr> <td>Scottish zone</td> <td>462,315</td> <td>63%</td> </tr> <tr> <td>English zone</td> <td>230,190</td> <td>32%</td> </tr> <tr> <td>Welsh zone</td> <td>30,778</td> <td>4%</td> </tr> <tr> <td>Northern Irish zone</td> <td>6,819</td> <td>1%</td> </tr> <tr> <td>UK Exclusive Economic Zone (Total)</td> <td>730,102</td> <td>100%</td> </tr> <tr> <td>Isle of Man territorial waters</td> <td>3,976</td> <td> </td> </tr> <tr> <td>Guernsey territorial waters</td> <td>3,691</td> <td> </td> </tr> <tr> <td>Jersey territorial waters</td> <td>2,965</td> <td style="text-align:right"> </td> </tr> </tbody> </table> Source: <a href="https://datahub.admiralty.co.uk/portal/apps/sites/#/marine-data-portal" target="_blank">UKHO</a> Maritime Limits

full_htmlHow long is the coastline of Scotland? We estimate Scotland’s coastline to be 18,743 km in length along the high water line (“mean high water spring” or MHWS) Coastlines are difficult to measure accurately because of the <a href="https://sketchplanations.com/the-coastline-paradox" target="_blank">coastline paradox</a>. All published figures are estimated, and will vary depending on the size of the ruler used to measure (the scale of the map). Source: <a href="https://osdatahub.os.uk/downloads/open/BoundaryLine" target="_blank">Ordnance Survey Boundary-Line</a> How big are Scotland’s seas? We estimate the area of Scotland’s seas to be 462,315 km2 using the definition of the “Scottish zone” in the <a href="http://www.legislation.gov.uk/ukpga/1998/46/section/126" target="_blank">Scotland Act 1998</a> (see table below for other definitions). Scotland’s seas are nearly six times larger than the land area of Scotland. The figure above reflects the UK <a href="https://www.un.org/depts/los/convention_agreements/texts/unclos/part5.htm" target="_blank">Exclusive Economic Zone</a> (EEZ) adjacent to Scotland, which accounts for 63% of the UK EEZ. The area of sea can vary depending on the <a href="https://www.gislounge.com/map-projection/" target="_blank">map projection</a> and coastline scale used for the calculations. A more detailed coastline can introduce variations and additional islands and skerries. Sources: <a href="https://datahub.admiralty.co.uk/portal/apps/sites/#/marine-data-portal" target="_blank">UKHO</a> Maritime Limits | <a href="https://www.sepa.org.uk/environment/environmental-data/" target="_blank">SEPA Transitional and Coastal Water Bodies</a> | <a href="https://jncc.gov.uk/our-work/uk-marine-protected-area-network-statistics/">JNCC MPA Statistics</a>. How many islands does Scotland have? We estimate Scotland to have over 900 islands, of which 118 are inhabited. The most remote Scottish island is Rockall, which is around 300 km from Hirta (Hiort) in the St Kilda archipelago. Source: <a href="https://www.nrscotland.gov.uk/statistics-and-data/geography/our-products/other-national-records-of-scotland-nrs-geographies-datasets" target="_blank">National Records of Scotland (NRS)</a> Which part of Scotland is furthest from the sea? We estimate the furthest point from the sea to be Glen Quoich near Braemar, which is around 65 km from the sea. Source: <a href="https://osdatahub.os.uk/downloads/open/OpenNames" target="_blank">Ordnance Survey Open Names</a>. How deep are Scotland’s seas? The deepest point in the Scottish zone is the Rockall Trough, with a depth of around 2,500m. On the extended continental shelf beyond Rockall, the deepest point in the Scottish offshore region is over 3,000 m deep. (For comparison, the summit of Ben Nevis is 1,345 m above sea level.) The average depth of the Scottish zone is around 600 m below sea level, or nearly 1 km (903 m) including the continental shelf limits. Source: <a href="https://www.emodnet-bathymetry.eu/" target="_blank">EMODnet 1/16 ArcMinute DEM </a> How many Marine Protected Areas are in Scotland? How much of Scottish seas are covered by Marine Protected Areas? As of March 2022, there are 233 sites for nature conservation covering 228,118 km2 or 37% of the continental shelf area adjacent to Scotland. Sites can have overlapping designations. <ul> <li>58 Special Areas of Conservation (SACs) for European protected species and habitats. </li> <li>58 Special Protection Areas (SPAs) for birds.</li> <li>36 Nature Conservation Marine Protected Areas for marine species, habitats, and geological features.</li> <li>16 Ramsar sites for wetlands of international importance.</li> <li>65 Sites of Special Scientific Interest (SSSIs) for species, habitats, and geological features.</li> </ul> These figure does not include other types of MPA such as Historic MPAs, Demonstration & Research MPAs, or marine management areas such as fisheries-specific restrictions. Source: <a href="https://jncc.gov.uk/our-work/uk-marine-protected-area-datasets-for-download/" target="_blank">JNCC</a> and <a href="https://www.gov.scot/policies/marine-environment/marine-protected-areas/">Scottish Government</a> How long are Scotland’s rivers and streams? Scotland has more than 125,000 km of rivers and streams varying from small highland burns to deep, wide lowland rivers such as the Tay. There is also a 220 km canal network in Scotland. There are over 25,500 lochs in Scotland, with the Western Isles and Sutherland having the highest concentration of lochs. Source: <a href="https://www.environment.gov.scot/our-environment/water/scotland-s-freshwater/" target="_blank">SEPA</a> Table 1: Sea areas of the waters adjacent to Scotland, by <a href="https://www.imo.org/en/OurWork/Legal/Pages/UnitedNationsConventionOnTheLawOfTheSea.aspx" target="_blank">United Nations Convention on the Law of the Sea</a> definitions <table border="0" cellpadding="1" cellspacing="1"> <thead> <tr> <th class="rteleft" scope="col" style="width:15%">Illustrative Map</th> <th class="rteleft" scope="col" style="width:20%">Landward Boundary</th> <th class="rteleft" scope="col" style="width:20%">Seaward Boundary</th> <th class="rteleft" scope="col">Description</th> <th class="rteleft" scope="col">Area (km2)</th> </tr> </thead> <tbody> <tr> <td><div class="media media-element-container media-default media-wysiwyg-align-right"><div class="ds-1col file file-image file-image-png view-mode-default clearfix"> <img alt="Illustrative map of the intertidal area around Scotland" style="height:100px;width:71px" class="file-default media-element" data-delta="13" typeof="foaf:Image" src="https://marine.gov.scot/sites/default/files/styles/large/public/intertidal.png?itok=-cqSBlhm" width="295" height="413" title="" /></div> </div></td> <td>Mean High Water Spring (MHWS)</td> <td>Mean Low Water Spring (MLWS)</td> <td> <ul> <li>Intertidal area</li> </ul> </td> <td>1,202</td> </tr> <tr> <td><div class="media media-element-container media-default media-wysiwyg-align-right"><div class="ds-1col file file-image file-image-png view-mode-default clearfix"> <img alt="Internal waters adjacent to Scotland" style="height:100px;width:66px" class="file-default media-element" data-delta="10" typeof="foaf:Image" src="https://marine.gov.scot/sites/default/files/styles/large/public/internal_0.png?itok=Weu_PPUh" width="234" height="354" title="" /></div> </div></td> <td>MHWS</td> <td>Baseline of the Territorial Sea (TS)</td> <td> <ul> <li>Internal Waters (UNCLOS)</li> <li>“Scottish onshore area” in the <a href="https://www.legislation.gov.uk/ukpga/1998/46/schedule/5/part/II/crossheading/head-d-energy_paragraph-wrapper34n2" target="_blank">Scotland Act 1998</a></li> <li>Territorial Sea baseline is defined in <a href="https://www.legislation.gov.uk/uksi/2014/1353/made">The Territorial Sea (Baselines) Order 2014</a></li> </ul> </td> <td>34,920</td> </tr> <tr> <td><div class="media media-element-container media-default media-wysiwyg-align-right"><div class="ds-1col file file-image file-image-png view-mode-default clearfix"> <img alt="Coastal and transitional waters (3NM) adjacent to Scotland" style="height:100px;width:100px" class="file-default media-element" data-delta="6" typeof="foaf:Image" src="https://marine.gov.scot/sites/default/files/styles/large/public/3nm.png?itok=CVYOXIf8" width="354" height="354" title="" /></div> </div></td> <td>MHWS</td> <td>3NM from baseline</td> <td> <ul> <li>Internal Waters + Territorial Sea (part) (UNCLOS)</li> <li>Combined extent of “Transitional” and “Coastal” waters in the <a href="https://www.legislation.gov.uk/asp/2003/3/section/3" target="_blank">Water Environment and Water Services (Scotland) Act 2003</a></li> <li>Territorial Sea baseline is defined in <a href="https://www.legislation.gov.uk/uksi/2014/1353/made">The Territorial Sea (Baselines) Order 2014</a></li> </ul> </td> <td>48,710</td> </tr> <tr> <td><div class="media media-element-container media-default media-wysiwyg-align-right"><div class="ds-1col file file-image file-image-png view-mode-default clearfix"> <img alt="Inshore waters (6NM) adjacent to Scotland" style="height:100px;width:100px" class="file-default media-element" data-delta="5" typeof="foaf:Image" src="https://marine.gov.scot/sites/default/files/styles/large/public/6nm.png?itok=GNg8OloZ" width="354" height="354" title="" /></div> </div></td> <td>MHWS</td> <td>6NM from baseline</td> <td> <ul> <li>Internal Waters + Territorial Sea (part) (UNCLOS)</li> <li>“Scottish inshore waters” in the <a href="https://www.legislation.gov.uk/ukpga/1984/26/section/9" target="_blank">Inshore Fishing (Scotland) Act 1984</a></li> <li>Territorial Sea baseline is defined in <a href="https://www.legislation.gov.uk/uksi/2014/1353/made">The Territorial Sea (Baselines) Order 2014</a></li> </ul> </td> <td>62,212</td> </tr> <tr> <td><div class="media media-element-container media-default media-wysiwyg-align-right"><div class="ds-1col file file-image file-image-png view-mode-default clearfix"> <img alt="The territorial sea (12NM) limit adjacent to Scotland" style="height:100px;width:100px" class="file-default media-element" data-delta="2" typeof="foaf:Image" src="https://marine.gov.scot/sites/default/files/styles/large/public/12nm.png?itok=lxgjOymr" width="354" height="354" title="" /></div> </div></td> <td>MHWS</td> <td>Territorial Sea Limit (up to 12NM from baseline)</td> <td> <ul> <li>Internal Waters + Territorial Sea (UNCLOS)</li> <li>“Scotland” in the <a href="http://www.legislation.gov.uk/ukpga/1998/46/section/126" target="_blank">Scotland Act 1998</a></li> <li>“Scottish inshore region” in the <a href="http://www.legislation.gov.uk/ukpga/2009/23/section/322" target="_blank">Marine and Coastal Access Act 2009</a></li> <li>“Scottish marine area” in the <a href="https://www.legislation.gov.uk/asp/2010/5/section/1" target="_blank">Marine (Scotland) Act 2010</a></li> <li>Territorial Sea baseline is defined in <a href="https://www.legislation.gov.uk/uksi/2014/1353/made">The Territorial Sea (Baselines) Order 2014</a></li> </ul> </td> <td>90,400</td> </tr> <tr> <td><div class="media media-element-container media-default media-wysiwyg-align-right"><div class="ds-1col file file-image file-image-png view-mode-default clearfix"> <img alt="The Exclusive Economic Zone (EEZ) adjacent to Scotland" style="height:100px;width:100px" class="file-default media-element" data-delta="3" typeof="foaf:Image" src="https://marine.gov.scot/sites/default/files/styles/large/public/eez_0.png?itok=kqwiPkJY" width="354" height="354" title="" /></div> </div></td> <td>MHWS</td> <td>Exclusive Economic Zone Limit (up to 200NM from baseline)</td> <td> <ul> <li>Internal Waters + Territorial Sea + EEZ (UNCLOS)</li> <li>“Scottish Zone” in the <a href="http://www.legislation.gov.uk/ukpga/1998/46/section/126" target="_blank">Scotland Act 1998</a></li> <li>Exclusive Economic Zone is defined in <a href="https://www.legislation.gov.uk/uksi/2013/3161/contents/made">The Exclusive Economic Zone Order 2013</a></li> </ul> </td> <td>462,315</td> </tr> <tr> <td><div class="media media-element-container media-default media-wysiwyg-align-right"><div class="ds-1col file file-image file-image-png view-mode-default clearfix"> <img alt="The Continental Shelf limits adjacent to Scotland" style="height:100px;width:100px" class="file-default media-element" data-delta="4" typeof="foaf:Image" src="https://marine.gov.scot/sites/default/files/styles/large/public/continental_shelf.png?itok=KeQXksqC" width="354" height="354" title="" /></div> </div></td> <td>MHWS</td> <td>Continental Shelf Limits (up to 350NM from baseline)</td> <td> <ul> <li>Internal Waters + Territorial Sea + Continental Shelf (UNCLOS)</li> <li>Combined extent of “Scottish inshore region” and “Scottish offshore region” in the <a href="http://www.legislation.gov.uk/ukpga/2009/23/section/322" target="_blank">Marine and Coastal Access Act 2009</a></li> <li>The Continental Shelf limit is defined in <a href="https://www.legislation.gov.uk/uksi/2013/3162/contents/made">The Continental Shelf (Designation of Areas) Order 2013</a></li> </ul> </td> <td>617,643</td> </tr> <tr> <td><div class="media media-element-container media-default media-wysiwyg-align-right"><div class="ds-1col file file-image file-image-png view-mode-default clearfix"> <img alt="Territorial sea, outside internal waters, adjacent to Scotland" style="height:100px;width:70px" class="file-default media-element" data-delta="12" typeof="foaf:Image" src="https://marine.gov.scot/sites/default/files/styles/large/public/12nm_outside_baseline_0.png?itok=ELavIB6M" width="242" height="345" title="" /></div> </div></td> <td>Baseline</td> <td>Territorial Sea Limit</td> <td> <ul> <li>Territorial Sea (UNCLOS)</li> <li>Territorial Sea baseline is defined in <a href="https://www.legislation.gov.uk/uksi/2014/1353/made">The Territorial Sea (Baselines) Order 2014</a></li> </ul> </td> <td>55,480</td> </tr> <tr> <td><div class="media media-element-container media-default media-wysiwyg-align-right"><div class="ds-1col file file-image file-image-png view-mode-default clearfix"> <img alt="The exclusive economic zone, outside territorial sea, adjacent to Scotland" style="height:100px;width:100px" class="file-default media-element" data-delta="8" typeof="foaf:Image" src="https://marine.gov.scot/sites/default/files/styles/large/public/eez_outside_ts.png?itok=OzEwVtbV" width="354" height="354" title="" /></div> </div></td> <td>Territorial Sea Limit</td> <td>Exclusive Economic Zone Limit</td> <td> <ul> <li>Exclusive Economic Zone (UNCLOS)</li> <li>Territorial Sea baseline is defined in <a href="https://www.legislation.gov.uk/uksi/2014/1353/made">The Territorial Sea (Baselines) Order 2014</a></li> <li>Exclusive Economic Zone is defined in <a href="https://www.legislation.gov.uk/uksi/2013/3161/contents/made">The Exclusive Economic Zone Order 2013</a></li> </ul> </td> <td>371,915</td> </tr> <tr> <td><div class="media media-element-container media-default media-wysiwyg-align-right"><div class="ds-1col file file-image file-image-png view-mode-default clearfix"> <img alt="The continental shelf limits, outside territorial sea, adjacent to Scotland" style="height:100px;width:100px" class="file-default media-element" data-delta="9" typeof="foaf:Image" src="https://marine.gov.scot/sites/default/files/styles/large/public/continental_shelf_outside_ts.png?itok=P9xvBvzl" width="354" height="354" title="" /></div> </div></td> <td>Territorial Sea Limit</td> <td>Continental Shelf Limits</td> <td> <ul> <li>Continental Shelf (UNCLOS)</li> <li>“Scottish offshore region” in the <a href="http://www.legislation.gov.uk/ukpga/2009/23/section/322" target="_blank">Marine and Coastal Access Act 2009</a></li> <li>Territorial Sea baseline is defined in <a href="https://www.legislation.gov.uk/uksi/2014/1353/made">The Territorial Sea (Baselines) Order 2014</a></li> <li>The Continental Shelf limit is defined in <a href="https://www.legislation.gov.uk/uksi/2013/3162/contents/made">The Continental Shelf (Designation of Areas) Order 2013</a></li> </ul> </td> <td>527,243</td> </tr> <tr> <td><div class="media media-element-container media-default media-wysiwyg-align-right"><div class="ds-1col file file-image file-image-png view-mode-default clearfix"> <img alt="The Special Area agreed between the UK and Kingdom of Denmark on behalf of the Faroe Islands" style="height:100px;width:100px" class="file-default media-element" data-delta="14" typeof="foaf:Image" src="https://marine.gov.scot/sites/default/files/styles/large/public/faroes_special_area.png?itok=4xP31HV4" width="207" height="207" title="" /></div> </div></td> <td>Schedule B of the The Exclusive Economic Zone Order 2013</td> <td>Schedule A of the The Exclusive Economic Zone Order 2013</td> <td> <ul> <li>The "Special Area" defined in the <a href="https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/350908/42904_Cm_8934_accessible.pdf">1999 Agreement between the UK, Kingdom of Denmark, and Faroe Islands</a></li> <li>Exclusive Economic Zone is defined in <a href="https://www.legislation.gov.uk/uksi/2013/3161/contents/made">The Exclusive Economic Zone Order 2013</a></li> </ul> </td> <td>8,014</td> </tr> </tbody> </table> NM = nautical mile Table 2: Sea area, coastlines and depths of the Scottish Marine Regions and Offshore Marine Regions (to Continental Shelf Limits) <table border="0" cellpadding="1" cellspacing="1"> <thead> <tr> <th class="rteleft" scope="row">Scottish Marine Area</th> <th class="rteleft" style="width:10%">Region</th> <th class="rteleft" style="width:10%">Area (km2)</th> <th class="rteleft">Distance along MHWS (km)*</th> <th class="rteleft">Deepest Point (m)</th> <th class="rteleft">Shallowest Point (m)</th> <th class="rteleft">Average Depth (m)</th> </tr> <tr> <td scope="row">Forth and Tay</td> <td>Inshore</td> <td>4,487</td> <td>775</td> <td>97</td> <td>MHWS</td> <td>39</td> </tr> <tr> <td scope="row">North East</td> <td>Inshore</td> <td>3,153</td> <td>307</td> <td>224</td> <td>MHWS</td> <td>63</td> </tr> <tr> <td scope="row">Moray Firth</td> <td>Inshore</td> <td>5,876</td> <td>985</td> <td>256</td> <td>MHWS</td> <td>50</td> </tr> <tr> <td scope="row">Orkney Islands</td> <td>Inshore</td> <td>9,256</td> <td>1,228</td> <td>195</td> <td>MHWS</td> <td>65</td> </tr> <tr> <td scope="row">Shetland Isles</td> <td>Inshore</td> <td>12,309</td> <td>2,382</td> <td>188</td> <td>MHWS</td> <td>93</td> </tr> <tr> <td scope="row">North Coast</td> <td>Inshore</td> <td>2,443</td> <td>544</td> <td>124</td> <td>MHWS</td> <td>68</td> </tr> <tr> <td scope="row">West Highlands</td> <td>Inshore</td> <td>10,420</td> <td>3,656</td> <td>322</td> <td>MHWS</td> <td>82</td> </tr> <tr> <td scope="row">Outer Hebrides</td> <td>Inshore</td> <td>20,848</td> <td>3,915</td> <td>268</td> <td>MHWS</td> <td>88</td> </tr> <tr> <td scope="row">Argyll</td> <td>Inshore</td> <td>12,044</td> <td>2,918</td> <td>320</td> <td>MHWS</td> <td>66</td> </tr> <tr> <td scope="row">Clyde</td> <td>Inshore</td> <td>4,279</td> <td>1,256</td> <td>198</td> <td>MHWS</td> <td>58</td> </tr> <tr> <td scope="row">Solway</td> <td>Inshore</td> <td>3,724</td> <td>777</td> <td>314</td> <td>MHWS</td> <td>52</td> </tr> <tr> <td scope="row">Long Forties</td> <td>Offshore</td> <td>34,508</td> <td>n/a</td> <td>178</td> <td>32</td> <td>80</td> </tr> <tr> <td scope="row">Fladen and Moray Firth Offshore</td> <td>Offshore</td> <td>40,261</td> <td>n/a</td> <td>248</td> <td>35</td> <td>111</td> </tr> <tr> <td scope="row">East Shetland Shelf</td> <td>Offshore</td> <td>33,713</td> <td>n/a</td> <td>175</td> <td>58</td> <td>128</td> </tr> <tr> <td scope="row">North and West Shetland Shelf</td> <td>Offshore</td> <td>28,676</td> <td>n/a</td> <td>623</td> <td>72</td> <td>254</td> </tr> <tr> <td scope="row">Faroe Shetland Channel</td> <td>Offshore</td> <td>42,752</td> <td>n/a</td> <td>2,418</td> <td>343</td> <td>1,304</td> </tr> <tr> <td scope="row">North Scotland Shelf</td> <td>Offshore</td> <td>28,820</td> <td>n/a</td> <td>1,073</td> <td>15</td> <td>213</td> </tr> <tr> <td scope="row">Hebrides Shelf</td> <td>Offshore</td> <td>30,437</td> <td>n/a</td> <td>1,359</td> <td>19</td> <td>241</td> </tr> <tr> <td scope="row">Bailey</td> <td>Offshore</td> <td>74,797</td> <td>n/a</td> <td>2,360</td> <td>322</td> <td>1,365</td> </tr> <tr> <td scope="row">Hatton</td> <td>Offshore</td> <td>155,215</td> <td>n/a</td> <td>3,185</td> <td>158</td> <td>1,783</td> </tr> <tr> <td scope="row">Rockall **</td> <td>Offshore </td> <td>59,625</td> <td>#</td> <td>2,576</td> <td>MHWS</td> <td>1,386</td> </tr> <tr> <td scope="row">Total</td> <td> </td> <td>617,643</td> <td>18,743</td> <td>3,185</td> <td>MHWS</td> <td>903</td> </tr> <tr> <td scope="row">Scottish Zone for comparison</td> <td> </td> <td>462,315</td> <td>18,743</td> <td>2,576</td> <td>MHWS</td> <td>611</td> </tr> </thead> </table> * Derived from OS Boundary-Line and subject to the <a href="https://sketchplanations.com/the-coastline-paradox" target="_blank">coastline paradox</a> ** The Rockall assessment area also includes the inshore area within the territorial sea. The territorial sea around Rockall is part of the “Scottish inshore region” under the <a href="http://www.legislation.gov.uk/ukpga/2009/23/section/322" target="_blank">Marine and Coastal Access Act 2009</a>, but is not defined as a Scottish Marine Region in the <a href="https://www.legislation.gov.uk/ssi/2015/193/made">The Scottish Marine Regions Order 2015</a>. # The coastline of Rockall is not mapped at a suitable scale Sources: <a href="https://www.oceanwise.eu/data/dem/" target="_blank">OceanWise 1 ArcSecond DEM</a> | <a href="https://www.emodnet-bathymetry.eu/" target="_blank">EMODnet 1/16 ArcMinute DEM </a> | <a href="https://osdatahub.os.uk/downloads/open/BoundaryLine" target="_blank">Ordnance Survey Boundary-Line</a> | <a href="https://datahub.admiralty.co.uk/portal/apps/sites/#/marine-data-portal" target="_blank">UKHO</a> Maritime Limits Table 3: Sea areas of UK Countries and Crown Dependencies <table border="0" cellpadding="1" cellspacing="1" style="width:500px"> <thead> <tr> <th class="rteleft" scope="col" style="width:60%">Description</th> <th class="rteleft" scope="col">Area (km2)</th> <th class="rteleft" scope="col">Approx. %</th> </tr> </thead> <tbody> <tr> <td>Scottish zone</td> <td>462,315</td> <td>63%</td> </tr> <tr> <td>English zone</td> <td>230,190</td> <td>32%</td> </tr> <tr> <td>Welsh zone</td> <td>30,778</td> <td>4%</td> </tr> <tr> <td>Northern Irish zone</td> <td>6,819</td> <td>1%</td> </tr> <tr> <td>UK Exclusive Economic Zone (Total)</td> <td>730,102</td> <td>100%</td> </tr> <tr> <td>Isle of Man territorial waters</td> <td>3,976</td> <td> </td> </tr> <tr> <td>Guernsey territorial waters</td> <td>3,691</td> <td> </td> </tr> <tr> <td>Jersey territorial waters</td> <td>2,965</td> <td style="text-align:right"> </td> </tr> </tbody> </table> Source: <a href="https://datahub.admiralty.co.uk/portal/apps/sites/#/marine-data-portal" target="_blank">UKHO</a> Maritime Limits 737sioc:Itemfoaf:Document<predicates is_array="true"><item>dc:title</item></predicates><type>property</type>dc:datedc:createdxsd:dateTimedate_iso8601dc:modifiedxsd:dateTimedate_iso8601content:encodedpropertysioc:has_creatorrelfoaf:namesioc:num_repliesxsd:integersioc:last_activity_datexsd:dateTimedate_iso8601https://marine.gov.scot/?q=data/facts-and-figures-about-scotlands-sea-area-coastline-length-sea-area-sq-kms1449941421304677draftpublished57170109842811Facts and figures about Scotland's sea area (coastline length, sea area in sq kms)17010984281449941421304677draftpublished57170109842811Facts and figures about Scotland's sea area (coastline length, sea area in sq kms)17010984281449941421304677draftpublished57170109842811Facts and figures about Scotland's sea area (coastline length, sea area in sq kms)1701098428