American Samoa vs United Republic of Tanzania: Red List Index
American Samoa
0.8081 index
in 2025
United Republic of Tanzania
0.8025 index
in 2025
American Samoa rank
177th
United Republic of Tanzania rank
180th
Red List Index over time
- American Samoa
- United Republic of Tanzania
How they compare
American Samoa currently reports 0.8081 index against 0.8025 index in United Republic of Tanzania, a difference of 0.0056 index.
The two have swapped places 1 time across 46 shared years of data; in 1980 it was United Republic of Tanzania ahead.
American Samoa ranks 177th and United Republic of Tanzania ranks 180th of 261 countries.
Across the 5 decades both report, American Samoa averaged higher in 3 and United Republic of Tanzania in 2.
Head to head by decade
| Decade | American Samoa | United Republic of Tanzania | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 0.8378 index | 0.8498 index | 0.0119 index | United Republic of Tanzania |
| 1990s | 0.8444 index | 0.8471 index | 0.0027 index | United Republic of Tanzania |
| 2000s | 0.8427 index | 0.8413 index | 0.0014 index | American Samoa |
| 2010s | 0.8278 index | 0.8252 index | 0.0025 index | American Samoa |
| 2020s | 0.8126 index | 0.808 index | 0.0046 index | American Samoa |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher red list index, American Samoa or United Republic of Tanzania?
- American Samoa, at 0.8081 index against 0.8025 index in United Republic of Tanzania as of 2025.
- What is the difference in red list index between American Samoa and United Republic of Tanzania?
- 0.0056 index, with American Samoa ahead.
- How many years of comparable data are there for American Samoa and United Republic of Tanzania?
- 46 years are reported by both, from 1980 to 2025.
- How do American Samoa and United Republic of Tanzania rank globally for red list index?
- American Samoa ranks 177th and United Republic of Tanzania ranks 180th of 261 countries.
- Where does this data come from?
- United Nations Statistics Division, SDG Global Database, published as Red List Index. Statizoid refreshes it automatically from the source and publishes the full history for both places.