Samoa vs Tanzania: Protected area coverage of marine key biodiversity areas
Samoa
54.1%
in 2025
Tanzania
54.0%
in 2025
Samoa rank
78th
Tanzania rank
79th
Protected area coverage of marine key biodiversity areas over time
- Samoa
- Tanzania
How they compare
Samoa currently reports 54.1% against 54.0% in Tanzania, a difference of 0.1%.
Across all 26 years both countries report, Samoa has been ahead every year.
Samoa ranks 78th and Tanzania ranks 79th of 190 countries.
Samoa has averaged higher in every one of the 3 decades both report.
Head to head by decade
| Decade | Samoa | Tanzania | Difference | Ahead |
|---|---|---|---|---|
| 2000s | 54.1% | 50.3% | 3.8% | Samoa |
| 2010s | 54.1% | 54.0% | 0.1% | Samoa |
| 2020s | 54.1% | 54.0% | 0.1% | Samoa |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher protected area coverage of marine key biodiversity areas, Samoa or Tanzania?
- Samoa, at 54.1% against 54.0% in Tanzania as of 2025.
- What is the difference in protected area coverage of marine key biodiversity areas between Samoa and Tanzania?
- 0.1%, with Samoa ahead.
- How many years of comparable data are there for Samoa and Tanzania?
- 26 years are reported by both, from 2000 to 2025.
- How do Samoa and Tanzania rank globally for protected area coverage of marine key biodiversity areas?
- Samoa ranks 78th and Tanzania ranks 79th of 190 countries.
- Where does this data come from?
- BirdLife International, IUCN and UNEP-WCMC β 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 (%).