Protected area coverage of marine key biodiversity areas in Tanzania
Tanzania: Protected area coverage of marine key biodiversity areas was 54.0% in 2025. ▲ Rising
Protected area coverage of marine key biodiversity areas in Tanzania, 2000–2025
Source: BirdLife International, IUCN and UNEP-WCMC – processed by Our World in Data. Measured in %.
Analysis
In 2025, protected area coverage of marine key biodiversity areas in Tanzania stood at 54.0%. That is the highest value across all 26 years on record.
Compared with earlier readings it is unchanged over ten years.
Over the whole period, protected area coverage of marine key biodiversity areas in Tanzania peaked at 54.0% in 2004 and was at its lowest, 44.8%, in 2000.
That places Tanzania 79th out of 190 countries with data for 2025, putting it in the middle of the range.
The long-run direction has been consistently rising across the 26 years of available data.
Protected area coverage of marine key biodiversity areas in Tanzania, year by year
| Year | % | Change |
|---|---|---|
| 2000 | 44.8% | — |
| 2001 | 44.8% | +0.0% |
| 2002 | 44.8% | +0.0% |
| 2003 | 44.8% | +0.0% |
| 2004 | 54.0% | +20.8% |
| 2005 | 54.0% | +0.0% |
| 2006 | 54.0% | +0.0% |
| 2007 | 54.0% | +0.0% |
| 2008 | 54.0% | +0.0% |
| 2009 | 54.0% | +0.0% |
| 2010 | 54.0% | +0.0% |
| 2011 | 54.0% | +0.0% |
| 2012 | 54.0% | +0.0% |
| 2013 | 54.0% | +0.0% |
| 2014 | 54.0% | +0.0% |
| 2015 | 54.0% | +0.0% |
| 2016 | 54.0% | +0.0% |
| 2017 | 54.0% | +0.0% |
| 2018 | 54.0% | +0.0% |
| 2019 | 54.0% | +0.0% |
| 2020 | 54.0% | +0.0% |
| 2021 | 54.0% | +0.0% |
| 2022 | 54.0% | +0.0% |
| 2023 | 54.0% | +0.0% |
| 2024 | 54.0% | +0.0% |
| 2025 | 54.0% | +0.0% |
Tanzania compared with similar countries
- Tanzania's 54.0% is above the median for lower middle income countries, which is 40.6%, 1.3× the median. (33 countries reporting)
- Tanzania's 54.0% is above the median for Sub-Saharan Africa, which is 54.0%, 1.0× the median. (29 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 50.3% | 44.8% | 54.0% | 10 |
| 2010s | 54.0% | 54.0% | 54.0% | 10 |
| 2020s | 54.0% | 54.0% | 54.0% | 6 |
Countries ranked near Tanzania
- 76 Norfolk Island 54.4% compare
- 77 French Guiana 54.3% compare
- 78 Samoa 54.1% compare
- 80 Uruguay 53.8% compare
- 81 Cook Islands 52.1% compare
- 82 Saint Kitts and Nevis 51.7% compare
More environment data for Tanzania
- Historical exposure to drought — Land soil moisture anomaly -7.52 Percentage change (2025)
- Historical exposure to drought — Cropland soil moisture anomaly -7.29 Percentage change (2025)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual 3.06 % change on previous year (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per unit 0 Mt CO2e per US$ of GDP (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per capita 0 Mt CO2e per person (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), annual growth rate 5.16 % change on previous year (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), per unit of GDP 0 Mt CO2e per US$ of GDP (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), per capita 0 Mt CO2e per person (2024)
- Methane (CH4) emissions from Building (Energy) (Mt CO2e), annual 0 % change on previous year (2024)
- Methane (CH4) emissions from Building (Energy) (Mt CO2e), per unit of 0 Mt CO2e per US$ of GDP (2024)
Frequently asked questions
- What is protected area coverage of marine key biodiversity areas in Tanzania?
- Protected area coverage of marine key biodiversity areas in Tanzania was 54.0% in 2025, according to BirdLife International, IUCN and UNEP-WCMC – processed by Our World in Data.
- What is the highest protected area coverage of marine key biodiversity areas recorded in Tanzania?
- The highest recorded value was 54.0% in 2004.
- What is the lowest protected area coverage of marine key biodiversity areas recorded in Tanzania?
- The lowest recorded value was 44.8% in 2000.
- How does Tanzania rank for protected area coverage of marine key biodiversity areas?
- Tanzania ranks 79th out of 190 countries with data for 2025.
- Is protected area coverage of marine key biodiversity areas rising or falling in Tanzania?
- Over the last ten years it is unchanged. The long-run trend across the full record is rising.
- Where does this Tanzania data come from?
- The figures come from BirdLife International, IUCN and UNEP-WCMC – processed by Our World in Data, published as part of Protected area coverage of marine key biodiversity areas. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 26 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Average proportion of Marine Key Biodiversity Areas (KBAs) covered by protected areas (%).