Surface area is a country's total area, including areas under inland bodies of water and some coastal waterways.
| 1970 | 1990 | 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Denmark | 42,920 | 42,920 | 42,920 | 42,920 | 42,920 | 42,920 | 42,920 | 42,920 | 42,920 | 42,920 | 42,920 | 42,920 | 42,920 | 42,920 | 42,920 | 42,920 | 42,920 |
| Finland | 338,150 | 338,150 | 338,150 | 338,150 | 338,420 | 338,420 | 338,420 | 338,420 | 338,420 | 338,446 | 338,450 | 338,450 | 338,450 | 338,460 | 338,460 | 338,470 | 338,470 |
| Iceland | 103,000 | 103,000 | 103,000 | 103,000 | 103,000 | 103,000 | 103,000 | 103,000 | 103,000 | 103,000 | 103,000 | 103,000 | 103,000 | 103,000 | 103,000 | 103,000 | 103,000 |
| Norway | 385,178 | 385,178 | 385,178 | 385,178 | 385,178 | 385,178 | 385,178 | 625,217 | 625,222 | 625,185 | 625,194 | 625,217 | 625,222 | 625,218 | 624,499 | 624,500 | 624,500 |
| Sweden | 447,420 | 447,420 | 447,420 | 447,420 | 447,420 | 447,420 | 447,420 | 528,448 | 528,448 | 528,449 | 528,449 | 528,449 | 528,449 | 528,860 | 528,860 | 528,860 | 528,860 |