Australia vs Jersey: Protected area coverage of marine key biodiversity areas
Australia
66.2%
in 2025
Jersey
64.1%
in 2025
Australia rank
58th
Jersey rank
61st
Protected area coverage of marine key biodiversity areas over time
- Australia
- Jersey
How they compare
Australia currently reports 66.2% against 64.1% in Jersey, a difference of 2.1%.
The two have swapped places 1 time across 26 shared years of data; in 2000 it was Jersey ahead.
Australia ranks 58th and Jersey ranks 61st of 190 countries.
Across the 3 decades both report, Australia averaged higher in 1 and Jersey in 2.
Head to head by decade
| Decade | Australia | Jersey | Difference | Ahead |
|---|---|---|---|---|
| 2000s | 46.2% | 63.6% | 17.3% | Jersey |
| 2010s | 60.7% | 64.0% | 3.3% | Jersey |
| 2020s | 65.8% | 64.1% | 1.7% | Australia |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher protected area coverage of marine key biodiversity areas, Australia or Jersey?
- Australia, at 66.2% against 64.1% in Jersey as of 2025.
- What is the difference in protected area coverage of marine key biodiversity areas between Australia and Jersey?
- 2.1%, with Australia ahead.
- How many years of comparable data are there for Australia and Jersey?
- 26 years are reported by both, from 2000 to 2025.
- How do Australia and Jersey rank globally for protected area coverage of marine key biodiversity areas?
- Australia ranks 58th and Jersey ranks 61st 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 (%).