Infrastructure · West Africa
Sierra Leone Slum Population
Share of the urban population living in slums, informal settlements or inadequate housing. Source: World Bank — World Development Indicators. Updated June 26, 2026.
Trend
History
| Period | Slum Population |
|---|---|
| 2022 | 49.3% |
| 2020 | 50.6% |
| 2018 | 53.4% |
| 2016 | 56.1% |
| 2014 | 58.9% |
| 2012 | 61.6% |
| 2010 | 64.3% |
| 2008 | 67.1% |
| 2006 | 69.8% |
| 2004 | 72.5% |
| 2002 | 73.9% |
| 2000 | 73.9% |
Get this via API
The series above is served by the /v1/data endpoint. With a free key you get JSON for every country and indicator on this site.
curl "https://api.africa-api.com/v1/data?country_code=SL&metric_key=slum_population_pct" \
-H "Authorization: Bearer $AFRICA_API_KEY"Slum Population across Africa
Rank all 54 ->| Country | Slum Population |
|---|---|
| Nigeria | 48.5% |
| Kenya | 40.5% |
| South Africa | 24.2% |
| Egypt | 3.8% |
| Ghana | 33.5% |
| Ethiopia | 64.3% |
Frequently asked questions
What is Sierra Leone's share of the urban population living in slums?
Sierra Leone's share of the urban population living in slums is 49.3% as of 2022, according to World Bank — World Development Indicators.
What is the source for this figure?
The figure comes from World Bank — World Development Indicators and is republished by the Africa API with the retrieval date shown on this page.
How do I get Sierra Leone Slum Population data via API?
Call GET /v1/data?country_code=SL&metric_key=slum_population_pct with a free Africa API key to receive the full time series as JSON.
More Sierra Leone infrastructure data