Marine protected areas are areas of intertidal or subtidal terrain--and overlying water and associated flora and fauna and historical and cultural features--that have been reserved by law or other effective means to protect part or all of the enclosed environment.
| 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| France | 20.4 | 19.8 | 19.2 | 26.2 | 30.7 | 45.0 | 48.9 | 50.4 | 49.8 | 49.8 | 49.8 | 49.8 |
| United Kingdom | 5.7 | 16.5 | 12.5 | 20.2 | 29.0 | 28.9 | 29.2 | 44.2 | 44.1 | 44.1 | 44.1 | 46.8 |
| Australia | 43.9 | 44.0 | 43.2 | 40.7 | 40.6 | 40.6 | 40.8 | 40.8 | 44.3 | 44.3 | 44.3 | 45.4 |
| Germany | 45.5 | 45.3 | 45.3 | 45.4 | 45.4 | 45.4 | 45.4 | 45.4 | 45.5 | 45.5 | 45.5 | 45.4 |
| Brazil | 1.3 | 1.6 | 1.6 | 1.7 | 1.7 | 26.6 | 26.8 | 26.8 | 26.8 | 26.8 | 26.8 | 26.6 |
| Mexico | 1.9 | 1.9 | 1.9 | 2.3 | 21.8 | 21.8 | 21.6 | 21.6 | 21.6 | 21.6 | 21.6 | 22.6 |
| United States | 13.3 | 10.8 | 27.7 | 41.1 | 41.0 | 41.1 | 41.1 | 37.4 | 19.0 | 19.0 | 19.1 | 19.0 |
| South Africa | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 12.1 | 14.6 | 15.5 | 15.5 | 15.5 | 15.5 | 15.4 |
| Japan | 0.5 | 0.5 | 0.5 | 0.5 | 8.2 | 8.2 | 8.2 | 8.2 | 13.9 | 13.9 | 13.9 | 13.8 |
| Argentina | 0.3 | 3.8 | 4.0 | 4.0 | 4.0 | 3.8 | 11.8 | 11.8 | 11.8 | 11.8 | 11.8 | 12.0 |
| Italy | 5.5 | 5.6 | 5.6 | 8.8 | 8.8 | 8.8 | 8.8 | 9.7 | 10.6 | 10.6 | 10.6 | 10.7 |
| Canada | 0.8 | 0.8 | 0.9 | 0.9 | 0.9 | 0.9 | 3.1 | 8.8 | 8.9 | 9.1 | 9.1 | 9.2 |
| China | 3.4 | 3.7 | 3.7 | 3.8 | 3.8 | 5.4 | 5.4 | 5.5 | 5.5 | 5.5 | 5.5 | 4.8 |
| Saudi Arabia | 1.6 | 1.6 | 1.6 | 1.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 3.5 |
| Indonesia | 3.3 | 2.9 | 2.9 | 2.9 | 2.9 | 3.1 | 3.1 | 3.1 | 3.1 | 3.1 | 3.1 | 3.0 |
| Korea, Rep. | 1.0 | 1.0 | 1.0 | 1.6 | 1.6 | 1.6 | 2.4 | 2.5 | 2.5 | 2.5 | 2.5 | 2.2 |
| Russian Federation | 3.1 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 |
| Turkiye | 1.2 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 1.8 | 1.8 | 1.8 | 1.7 |
| India | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.3 |