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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chile | 4.4 | 4.4 | 4.4 | 12.6 | 12.9 | 28.8 | 41.2 | 41.3 | 41.3 | 41.4 | 41.4 | 41.2 |
| Colombia | 10.2 | 10.2 | 2.1 | 2.1 | 10.4 | 17.1 | 17.1 | 17.2 | 17.2 | 17.1 | 17.1 | 41.1 |
| Costa Rica | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 2.6 | 2.7 | 2.7 | 29.0 | 29.0 | 28.4 |
| 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 |
| Panama | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 11.6 | 26.8 | 26.8 | 26.8 | 26.3 |
| Mexico | 1.9 | 1.9 | 1.9 | 21.8 | 21.8 | 21.6 | 21.6 | 21.6 | 21.6 | 21.6 | 21.6 | 22.6 |
| Ecuador | 13.0 | 13.0 | 13.1 | 13.1 | 13.1 | 13.3 | 13.3 | 13.3 | 13.3 | 19.1 | 19.1 | 19.3 |
| Portugal | 6.6 | 6.7 | 6.7 | 8.4 | 16.2 | 16.6 | 16.6 | 16.8 | 16.8 | 16.9 | 16.9 | 16.8 |
| Dominican Republic | 9.0 | 9.1 | 9.1 | 9.1 | 9.1 | 18.0 | 18.0 | 18.0 | 18.0 | 17.3 | 17.3 | 13.3 |
| Spain | 1.7 | 1.1 | 7.1 | 8.4 | 8.4 | 8.4 | 12.7 | 12.8 | 12.8 | 12.8 | 12.8 | 12.8 |
| 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 |
| Peru | 0.6 | 0.6 | 0.6 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 8.0 | 8.0 | 7.9 |
| Honduras | 0.5 | 4.1 | 4.1 | 4.2 | 4.2 | 4.2 | 4.2 | 4.6 | 4.6 | 4.6 | 4.6 | 4.9 |
| Venezuela (Bolivarian Republic of) | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 | 3.5 | 4.3 | 4.3 | 4.4 | 4.3 | 4.4 |
| Cuba | 2.6 | 2.6 | 2.6 | 4.3 | 4.3 | 4.3 | 3.9 | 3.9 | 3.9 | 3.9 | 3.9 | 4.2 |
| Nicaragua | 3.0 | 3.0 | 2.9 | 3.0 | 3.0 | 3.0 | 3.0 | 3.4 | 3.4 | 3.4 | 3.4 | 3.6 |
| Uruguay | 0.3 | 0.3 | 0.3 | 0.7 | 0.7 | 0.7 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 1.5 |
| Guatemala | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.9 | 0.9 | 0.8 | 0.8 | 0.8 | 0.8 | 0.9 |
| El Salvador | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.8 |
| Equatorial Guinea | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.3 |