Protected area coverage of marine key biodiversity areas in Sierra Leone
Sierra Leone: Protected area coverage of marine key biodiversity areas was 60.2% in 2025. ▲ Rising
Protected area coverage of marine key biodiversity areas in Sierra Leone, 2000–2025
Source: BirdLife International, IUCN and UNEP-WCMC – processed by Our World in Data. Measured in %.
Analysis
Sierra Leone recorded 60.2% for protected area coverage of marine key biodiversity areas in 2025. That is the highest value across all 26 years on record.
That represents a change of unchanged over ten years.
Over the whole period, protected area coverage of marine key biodiversity areas in Sierra Leone peaked at 60.2% in 2012 and was at its lowest, 49.3%, in 2000.
That places Sierra Leone 66th 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 Sierra Leone, year by year
| Year | % | Change |
|---|---|---|
| 2000 | 49.3% | — |
| 2001 | 49.3% | +0.0% |
| 2002 | 49.3% | +0.0% |
| 2003 | 49.3% | +0.0% |
| 2004 | 49.3% | +0.0% |
| 2005 | 49.3% | +0.0% |
| 2006 | 49.3% | +0.0% |
| 2007 | 49.3% | +0.0% |
| 2008 | 49.3% | +0.0% |
| 2009 | 49.3% | +0.0% |
| 2010 | 49.3% | +0.0% |
| 2011 | 49.3% | +0.0% |
| 2012 | 60.2% | +21.9% |
| 2013 | 60.2% | +0.0% |
| 2014 | 60.2% | +0.0% |
| 2015 | 60.2% | +0.0% |
| 2016 | 60.2% | +0.0% |
| 2017 | 60.2% | +0.0% |
| 2018 | 60.2% | +0.0% |
| 2019 | 60.2% | +0.0% |
| 2020 | 60.2% | +0.0% |
| 2021 | 60.2% | +0.0% |
| 2022 | 60.2% | +0.0% |
| 2023 | 60.2% | +0.0% |
| 2024 | 60.2% | +0.0% |
| 2025 | 60.2% | +0.0% |
Sierra Leone compared with similar countries
- Sierra Leone's 60.2% is above the median for low income countries, which is 36.9%, 1.6× the median. (12 countries reporting)
- Sierra Leone's 60.2% is above the median for Sub-Saharan Africa, which is 54.0%, 1.1× the median. (29 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 49.3% | 49.3% | 49.3% | 10 |
| 2010s | 58.0% | 49.3% | 60.2% | 10 |
| 2020s | 60.2% | 60.2% | 60.2% | 6 |
Countries ranked near Sierra Leone
More environment data for Sierra Leone
- Historical exposure to drought — Land soil moisture anomaly -5.4 Percentage change (2025)
- Historical exposure to drought — Cropland soil moisture anomaly -5.39 Percentage change (2025)
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.232 °C (2025)
- Temperature change 1.28 °C (2025)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual 1.72 % 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 1.11 % change on previous year (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), per unit of GDP 0 Mt CO2e per US$ of GDP (2024)
Frequently asked questions
- What is protected area coverage of marine key biodiversity areas in Sierra Leone?
- Protected area coverage of marine key biodiversity areas in Sierra Leone was 60.2% 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 Sierra Leone?
- The highest recorded value was 60.2% in 2012.
- What is the lowest protected area coverage of marine key biodiversity areas recorded in Sierra Leone?
- The lowest recorded value was 49.3% in 2000.
- How does Sierra Leone rank for protected area coverage of marine key biodiversity areas?
- Sierra Leone ranks 66th out of 190 countries with data for 2025.
- Is protected area coverage of marine key biodiversity areas rising or falling in Sierra Leone?
- Over the last ten years it is unchanged. The long-run trend across the full record is rising.
- Where does this Sierra Leone 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 (%).