Portugal vs United States of America: Marine protected areas
Portugal
16.9%
in 2025
United States of America
19.0%
in 2025
Portugal rank
35th
United States of America rank
32nd
Marine protected areas over time
- Portugal
- United States of America
How they compare
United States of America currently reports 19.0% against 16.9% in Portugal, a difference of 2.1%.
That makes United States of America's figure about 1.1 times Portugal's.
Across all 13 years both countries report, United States of America has been ahead every year.
Portugal ranks 35th and United States of America ranks 32nd of 174 countries.
United States of America has averaged higher in every one of the 2 decades both report.
Head to head by decade
| Decade | Portugal | United States of America | Difference | Ahead |
|---|---|---|---|---|
| 2010s | 11.1% | 30.9% | 19.8% | United States of America |
| 2020s | 16.8% | 22.1% | 5.2% | United States of America |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher marine protected areas, Portugal or United States of America?
- United States of America, at 19.0% against 16.9% in Portugal as of 2025.
- What is the difference in marine protected areas between Portugal and United States of America?
- 2.1%, with United States of America ahead.
- How many years of comparable data are there for Portugal and United States of America?
- 13 years are reported by both, from 2013 to 2025.
- How do Portugal and United States of America rank globally for marine protected areas?
- Portugal ranks 35th and United States of America ranks 32nd of 174 countries.
- Where does this data come from?
- Protected Planet: The World Database on Protected Areas (WDPA) and World Database on Other Effective Area-based Conservation Measures (WD-OECM), UN Environment Programme World Conservation Monitoring, published as Marine protected areas (% of territorial waters). Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
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.