Northern Mariana Islands vs United States of America: Protected area coverage of marine key biodiversity areas
Northern Mariana Islands
36.1%
in 2025
United States of America
34.3%
in 2025
Northern Mariana Islands rank
116th
United States of America rank
117th
Protected area coverage of marine key biodiversity areas over time
- Northern Mariana Islands
- United States of America
How they compare
Northern Mariana Islands currently reports 36.1% against 34.3% in United States of America, a difference of 1.8%.
That makes Northern Mariana Islands's figure about 1.1 times United States of America's.
The two have swapped places 1 time across 26 shared years of data; in 2000 it was United States of America ahead.
Northern Mariana Islands ranks 116th and United States of America ranks 117th of 190 countries.
Across the 3 decades both report, Northern Mariana Islands averaged higher in 2 and United States of America in 1.
Head to head by decade
| Decade | Northern Mariana Islands | United States of America | Difference | Ahead |
|---|---|---|---|---|
| 2000s | 3.6% | 33.3% | 29.6% | United States of America |
| 2010s | 36.1% | 34.2% | 1.9% | Northern Mariana Islands |
| 2020s | 36.1% | 34.3% | 1.8% | Northern Mariana Islands |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher protected area coverage of marine key biodiversity areas, Northern Mariana Islands or United States of America?
- Northern Mariana Islands, at 36.1% against 34.3% in United States of America as of 2025.
- What is the difference in protected area coverage of marine key biodiversity areas between Northern Mariana Islands and United States of America?
- 1.8%, with Northern Mariana Islands ahead.
- How many years of comparable data are there for Northern Mariana Islands and United States of America?
- 26 years are reported by both, from 2000 to 2025.
- How do Northern Mariana Islands and United States of America rank globally for protected area coverage of marine key biodiversity areas?
- Northern Mariana Islands ranks 116th and United States of America ranks 117th of 190 countries.
- Where does this data come from?
- BirdLife International, IUCN and UNEP-WCMC – processed by Our World in Data, published as Protected area coverage of marine key biodiversity areas. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Average proportion of Marine Key Biodiversity Areas (KBAs) covered by protected areas (%).