Jersey vs Tanzania: Share of terrestrial Key Biodiversity Areas that are protected
Jersey
64.1%
in 2025
Tanzania
65.0%
in 2025
Jersey rank
66th
Tanzania rank
64th
Share of terrestrial Key Biodiversity Areas that are protected over time
- Jersey
- Tanzania
How they compare
Tanzania currently reports 65.0% against 64.1% in Jersey, a difference of 0.9%.
The two have swapped places 1 time across 26 shared years of data; in 2000 it was Jersey ahead.
Jersey ranks 66th and Tanzania ranks 64th of 240 countries.
Across the 3 decades both report, Jersey averaged higher in 2 and Tanzania in 1.
Head to head by decade
| Decade | Jersey | Tanzania | Difference | Ahead |
|---|---|---|---|---|
| 2000s | 64.1% | 54.9% | 9.1% | Jersey |
| 2010s | 64.1% | 58.1% | 5.9% | Jersey |
| 2020s | 64.1% | 65.0% | 0.9% | Tanzania |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher share of terrestrial key biodiversity areas that are protected, Jersey or Tanzania?
- Tanzania, at 65.0% against 64.1% in Jersey as of 2025.
- What is the difference in share of terrestrial key biodiversity areas that are protected between Jersey and Tanzania?
- 0.9%, with Tanzania ahead.
- How many years of comparable data are there for Jersey and Tanzania?
- 26 years are reported by both, from 2000 to 2025.
- How do Jersey and Tanzania rank globally for share of terrestrial key biodiversity areas that are protected?
- Jersey ranks 66th and Tanzania ranks 64th of 240 countries.
- Where does this data come from?
- BirdLife International, IUCN and UNEP-WCMC – processed by Our World in Data, published as Share of terrestrial Key Biodiversity Areas that are protected. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Average proportion of Terrestrial Key Biodiversity Areas (KBAs) covered by protected areas (%).