Norfolk Island vs Northern Mariana Islands: Red List Index
Norfolk Island
0.62 index
in 2025
Northern Mariana Islands
0.61 index
in 2025
Norfolk Island rank
234th
Northern Mariana Islands rank
236th
Red List Index over time
- Norfolk Island
- Northern Mariana Islands
How they compare
Norfolk Island currently reports 0.62 index against 0.61 index in Northern Mariana Islands, a difference of 0.01 index.
The two have swapped places 3 times across 46 shared years of data; in 1980 it was Northern Mariana Islands ahead.
Norfolk Island ranks 234th and Northern Mariana Islands ranks 236th of 247 countries.
Across the 5 decades both report, Norfolk Island averaged higher in 1 and Northern Mariana Islands in 4.
Head to head by decade
| Decade | Norfolk Island | Northern Mariana Islands | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 0.65 index | 0.69 index | 0.04 index | Northern Mariana Islands |
| 1990s | 0.65 index | 0.685 index | 0.035 index | Northern Mariana Islands |
| 2000s | 0.647 index | 0.661 index | 0.014 index | Northern Mariana Islands |
| 2010s | 0.633 index | 0.636 index | 0.003 index | Northern Mariana Islands |
| 2020s | 0.62 index | 0.6133 index | 0.0067 index | Norfolk Island |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher red list index, Norfolk Island or Northern Mariana Islands?
- Norfolk Island, at 0.62 index against 0.61 index in Northern Mariana Islands as of 2025.
- What is the difference in red list index between Norfolk Island and Northern Mariana Islands?
- 0.01 index, with Norfolk Island ahead.
- How many years of comparable data are there for Norfolk Island and Northern Mariana Islands?
- 46 years are reported by both, from 1980 to 2025.
- How do Norfolk Island and Northern Mariana Islands rank globally for red list index?
- Norfolk Island ranks 234th and Northern Mariana Islands ranks 236th of 247 countries.
- Where does this data come from?
- BirdLife International and IUCN β processed by Our World in Data, published as Red List Index. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Red List Index.