Which has higher red list index, Northern Mariana Islands or Reunion?

Northern Mariana Islands, at 0.61 index against 0.58 index in Reunion as of 2025.

What is the difference in red list index between Northern Mariana Islands and Reunion?

0.03 index, with Northern Mariana Islands ahead.

How many years of comparable data are there for Northern Mariana Islands and Reunion?

46 years are reported by both, from 1980 to 2025.

Where does this data come from?

BirdLife International and IUCN – 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.

Northern Mariana Islands vs Reunion: Red List Index (BirdLife International)

Northern Mariana Islands

0.61 index

in 2025

Reunion

0.58 index

in 2025

Northern Mariana Islands rank

236th

Reunion rank

239th

Red List Index (BirdLife International) over time

Northern Mariana Islands
Reunion

How they compare

Northern Mariana Islands currently reports 0.61 index against 0.58 index in Reunion, a difference of 0.03 index.

That makes Northern Mariana Islands's figure about 1.1 times Reunion's.

Across all 46 years both countries report, Northern Mariana Islands has been ahead every year.

Northern Mariana Islands ranks 236th and Reunion ranks 239th of 247 countries.

Northern Mariana Islands has averaged higher in every one of the 5 decades both report.

Head to head by decade

Decade	Northern Mariana Islands	Reunion	Difference	Ahead
1980s	0.69 index	0.63 index	0.06 index	Northern Mariana Islands
1990s	0.685 index	0.62 index	0.065 index	Northern Mariana Islands
2000s	0.661 index	0.62 index	0.041 index	Northern Mariana Islands
2010s	0.636 index	0.602 index	0.034 index	Northern Mariana Islands
2020s	0.6133 index	0.5833 index	0.03 index	Northern Mariana Islands

Averages of every year both report within each decade.

Frequently asked questions

Which has higher red list index, Northern Mariana Islands or Reunion?: Northern Mariana Islands, at 0.61 index against 0.58 index in Reunion as of 2025.
What is the difference in red list index between Northern Mariana Islands and Reunion?: 0.03 index, with Northern Mariana Islands ahead.
How many years of comparable data are there for Northern Mariana Islands and Reunion?: 46 years are reported by both, from 1980 to 2025.
How do Northern Mariana Islands and Reunion rank globally for red list index?: Northern Mariana Islands ranks 236th and Reunion ranks 239th of 247 countries.
Where does this data come from?: BirdLife International and IUCN – 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.

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Northern Mariana Islands vs Reunion: Red List Index. Statizoid, drawing on BirdLife International and IUCN – processed by Our World in Data. Retrieved 07 November 2026, from https://reference.statizoid.com/compare/red-list-index/northern-mariana-islands/reunion/

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<a href="https://reference.statizoid.com/compare/red-list-index/northern-mariana-islands/reunion/">Northern Mariana Islands vs Reunion: Red List Index</a> — Statizoid

About this data

Indicator: Red List Index
Unit: index
Source: BirdLife International and IUCN – processed by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 247 places, 11,362 data points, 1980–2025
Last refreshed: 30 October 2026

Red List Index.