Red list index (Our World) in Tanzania

Tanzania: Red list index (Our World) was 0.8 in 2025. ▼ Falling

Latest (2025)
0.8
Change on year
unchanged
World rank
167th
of 247 countries
All-time high
0.85
in 1980
All-time low
0.8
in 2024
Years of data
46
1980–2025

Red list index in Tanzania, 1980–2025

00.20.40.60.8198020022025

Source: Our World in Data.

Analysis

Tanzania recorded 0.8 for red list index in 2025. That is the lowest value across all 46 years on record.

Compared with earlier readings it is down 2.4% over ten years.

Over the whole period, red list index in Tanzania peaked at 0.85 in 1980 and was at its lowest, 0.8, in 2024.

Tanzania ranks 167th of 247 countries on this measure, in the middle of the range.

The long-run direction has been consistently falling across the 46 years of available data.

Red list index (Our World) in Tanzania, year by year

Annual values for Red list index in Tanzania, 1980 to 2025.
Year Value Change
1980 0.85 —
1981 0.85 +0.0%
1982 0.85 +0.0%
1983 0.85 +0.0%
1984 0.85 +0.0%
1985 0.85 +0.0%
1986 0.85 +0.0%
1987 0.85 +0.0%
1988 0.85 +0.0%
1989 0.85 +0.0%
1990 0.85 +0.0%
1991 0.85 +0.0%
1992 0.85 +0.0%
1993 0.85 +0.0%
1994 0.85 +0.0%
1995 0.85 +0.0%
1996 0.85 +0.0%
1997 0.85 +0.0%
1998 0.85 +0.0%
1999 0.85 +0.0%
2000 0.84 -1.2%
2001 0.84 +0.0%
2002 0.84 +0.0%
2003 0.84 +0.0%
2004 0.84 +0.0%
2005 0.84 +0.0%
2006 0.84 +0.0%
2007 0.84 +0.0%
2008 0.84 +0.0%
2009 0.84 +0.0%
2010 0.84 +0.0%
2011 0.83 -1.2%
2012 0.83 +0.0%
2013 0.83 +0.0%
2014 0.83 +0.0%
2015 0.82 -1.2%
2016 0.82 +0.0%
2017 0.82 +0.0%
2018 0.82 +0.0%
2019 0.82 +0.0%
2020 0.81 -1.2%
2021 0.81 +0.0%
2022 0.81 +0.0%
2023 0.81 +0.0%
2024 0.8 -1.2%
2025 0.8 +0.0%

Tanzania compared with similar countries

  • Tanzania's 0.8 is below the median for lower middle income countries, which is 0.88, 91% of the median. (47 countries reporting)
  • Tanzania's 0.8 is below the median for Sub-Saharan Africa, which is 0.92, 87% of the median. (48 countries reporting)

Averages by decade

DecadeAverage LowestHighest Years
1980s 0.85 0.85 0.85 10
1990s 0.85 0.85 0.85 10
2000s 0.84 0.84 0.84 10
2010s 0.826 0.82 0.84 10
2020s 0.8067 0.8 0.81 6

Countries ranked near Tanzania

  1. 167 British Indian Ocean Territory 0.8 compare
  2. 167 Cayman Islands 0.8 compare
  3. 167 Niue 0.8 compare
  4. 167 Spain 0.8 compare
  5. 167 Turks and Caicos Islands 0.8 compare

See the full ranking of 247 places →

More reference data data for Tanzania

All data for Tanzania →

Frequently asked questions

What is red list index in Tanzania?
Red list index in Tanzania was 0.8 in 2025, according to Our World in Data.
What is the highest red list index recorded in Tanzania?
The highest recorded value was 0.85 in 1980.
What is the lowest red list index recorded in Tanzania?
The lowest recorded value was 0.8 in 2024.
How does Tanzania rank for red list index?
Tanzania ranks 167th out of 247 countries with data for 2025.
Is red list index rising or falling in Tanzania?
Over the last ten years it is down 2.4%. The long-run trend across the full record is falling.
Where does this Tanzania data come from?
The figures come from Our World in Data, published as part of Red list index. Statizoid updates them automatically from the source API.

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Red list index in Tanzania. Statizoid, drawing on Our World in Data. Retrieved 14 November 2026, from https://reference.statizoid.com/stat/red-list-index/tanzania/

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About this data

Indicator
Red list index
Source
Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
247 places, 11,362 data points, 1980–2025
Last refreshed