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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| Thailand | 1.8 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 4.4 | 4.4 | 4.4 | 4.8 | 5.0 |
| 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 |
| Malaysia | 1.4 | 1.4 | 1.4 | 1.4 | 1.4 | 1.5 | 1.5 | 3.3 | 5.6 | 5.6 | 5.6 | 4.8 |
| 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 |
| Philippines | 1.0 | 1.1 | 1.1 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.7 | 1.7 | 1.7 | 1.6 |
| Cambodia | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 1.4 | 1.4 | 1.4 | 1.4 | 1.5 |
| Myanmar | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 2.3 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
| Vietnam | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.5 |
| Brunei Darussalam | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.0 |
| Singapore | 1.2 | 1.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |