Population in urban agglomerations of more than 1 million, per square in Sierra Leone
Sierra Leone: Population in urban agglomerations of more than 1 million, per square was 18.14 units per square kilometre in 2023. ◆ Volatile
Population in urban agglomerations of more than 1 million, per square in Sierra Leone, 1961–2023
Source: Statizoid (derived). Measured in units per square kilometre.
Analysis
The most recent figure for population in urban agglomerations of more than 1 million, per square in Sierra Leone is 18.14 units per square kilometre, measured in 2023. That is the highest value across all 63 years on record.
Compared with earlier readings it is up 2.9% on the previous year and up 32.8% over ten years.
Over the whole period, population in urban agglomerations of more than 1 million, per square in Sierra Leone peaked at 18.14 units per square kilometre in 2023 and was at its lowest, 1.69 units per square kilometre, in 1961.
That places Sierra Leone 58th out of 121 countries with data for 2023, putting it in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Population in urban agglomerations of more than 1 million, per square in Sierra Leone, year by year
| Year | units per square kilometre | Change |
|---|---|---|
| 1961 | 1.69 units per square kilometre | — |
| 1962 | 1.74 units per square kilometre | +2.7% |
| 1963 | 1.8 units per square kilometre | +3.7% |
| 1964 | 1.92 units per square kilometre | +6.8% |
| 1965 | 2.06 units per square kilometre | +6.8% |
| 1966 | 2.2 units per square kilometre | +6.8% |
| 1967 | 2.34 units per square kilometre | +6.8% |
| 1968 | 2.5 units per square kilometre | +6.8% |
| 1969 | 2.67 units per square kilometre | +6.8% |
| 1970 | 2.86 units per square kilometre | +6.8% |
| 1971 | 3.05 units per square kilometre | +6.8% |
| 1972 | 3.26 units per square kilometre | +6.8% |
| 1973 | 3.48 units per square kilometre | +6.8% |
| 1974 | 3.72 units per square kilometre | +6.8% |
| 1975 | 3.94 units per square kilometre | +5.8% |
| 1976 | 4.14 units per square kilometre | +5.1% |
| 1977 | 4.34 units per square kilometre | +5.1% |
| 1978 | 4.57 units per square kilometre | +5.1% |
| 1979 | 4.8 units per square kilometre | +5.1% |
| 1980 | 5.04 units per square kilometre | +5.1% |
| 1981 | 5.3 units per square kilometre | +5.1% |
| 1982 | 5.57 units per square kilometre | +5.1% |
| 1983 | 5.85 units per square kilometre | +5.1% |
| 1984 | 6.15 units per square kilometre | +5.1% |
| 1985 | 6.46 units per square kilometre | +5.1% |
| 1986 | 6.7 units per square kilometre | +3.7% |
| 1987 | 6.87 units per square kilometre | +2.6% |
| 1988 | 7.05 units per square kilometre | +2.6% |
| 1989 | 7.23 units per square kilometre | +2.6% |
| 1990 | 7.42 units per square kilometre | +2.6% |
| 1991 | 7.61 units per square kilometre | +2.6% |
| 1992 | 7.8 units per square kilometre | +2.6% |
| 1993 | 8 units per square kilometre | +2.6% |
| 1994 | 8.21 units per square kilometre | +2.6% |
| 1995 | 8.42 units per square kilometre | +2.6% |
| 1996 | 8.64 units per square kilometre | +2.6% |
| 1997 | 8.86 units per square kilometre | +2.6% |
| 1998 | 9.09 units per square kilometre | +2.6% |
| 1999 | 9.33 units per square kilometre | +2.6% |
| 2000 | 9.57 units per square kilometre | +2.6% |
| 2001 | 9.81 units per square kilometre | +2.6% |
| 2002 | 10.07 units per square kilometre | +2.6% |
| 2003 | 10.33 units per square kilometre | +2.6% |
| 2004 | 10.59 units per square kilometre | +2.6% |
| 2005 | 10.88 units per square kilometre | +2.7% |
| 2006 | 11.2 units per square kilometre | +2.9% |
| 2007 | 11.52 units per square kilometre | +2.9% |
| 2008 | 11.85 units per square kilometre | +2.9% |
| 2009 | 12.19 units per square kilometre | +2.9% |
| 2010 | 12.54 units per square kilometre | +2.9% |
| 2011 | 12.9 units per square kilometre | +2.9% |
| 2012 | 13.27 units per square kilometre | +2.9% |
| 2013 | 13.66 units per square kilometre | +2.9% |
| 2014 | 14.05 units per square kilometre | +2.9% |
| 2015 | 14.45 units per square kilometre | +2.9% |
| 2016 | 14.87 units per square kilometre | +2.9% |
| 2017 | 15.3 units per square kilometre | +2.9% |
| 2018 | 15.74 units per square kilometre | +2.9% |
| 2019 | 16.19 units per square kilometre | +2.9% |
| 2020 | 16.65 units per square kilometre | +2.9% |
| 2021 | 17.13 units per square kilometre | +2.9% |
| 2022 | 17.62 units per square kilometre | +2.9% |
| 2023 | 18.14 units per square kilometre | +2.9% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 2.1 units per square kilometre | 1.69 units per square kilometre | 2.67 units per square kilometre | 9 |
| 1970s | 3.81 units per square kilometre | 2.86 units per square kilometre | 4.8 units per square kilometre | 10 |
| 1980s | 6.22 units per square kilometre | 5.04 units per square kilometre | 7.23 units per square kilometre | 10 |
| 1990s | 8.34 units per square kilometre | 7.42 units per square kilometre | 9.33 units per square kilometre | 10 |
| 2000s | 10.8 units per square kilometre | 9.57 units per square kilometre | 12.19 units per square kilometre | 10 |
| 2010s | 14.3 units per square kilometre | 12.54 units per square kilometre | 16.19 units per square kilometre | 10 |
| 2020s | 17.39 units per square kilometre | 16.65 units per square kilometre | 18.14 units per square kilometre | 4 |
Countries ranked near Sierra Leone
- 55 Morocco 18.95 units per square kilometre compare
- 56 South Africa 18.59 units per square kilometre compare
- 57 Ireland 18.44 units per square kilometre compare
- 59 Cameroon 18.13 units per square kilometre compare
- 60 Côte d'Ivoire 17.88 units per square kilometre compare
- 61 Senegal 17.81 units per square kilometre compare
More urban development data for Sierra Leone
- Population in the largest city 34.3% (2025)
- Population density 117.21 people per sq. km of land area (2023)
- PM2.5 air pollution, mean annual exposure 22.46 micrograms per cubic meter (2023)
- Population in urban agglomerations of more than 1 million 1.39 million (2025)
- Population in urban agglomerations of more than 1 million, per capita 0.1573 units per person (2025)
- Population in urban agglomerations of more than 1 million, annual 2.95 % change on previous year (2025)
- Population in urban agglomerations of more than 1 million, per unit 0.0002 units per US$ of GDP (2025)
- Population in largest city 1.39 million (2025)
- Africa's Development Dynamics (AfDD) Table 23 - Ecological 25.86 Hectares (2020)
- PM2.5 air pollution, population exposed to levels exceeding WHO 100.0% (2017)
Frequently asked questions
- What is population in urban agglomerations of more than 1 million, per square in Sierra Leone?
- Population in urban agglomerations of more than 1 million, per square in Sierra Leone was 18.14 units per square kilometre in 2023, according to Statizoid (derived).
- What is the highest population in urban agglomerations of more than 1 million, per square recorded in Sierra Leone?
- The highest recorded value was 18.14 units per square kilometre in 2023.
- What is the lowest population in urban agglomerations of more than 1 million, per square recorded in Sierra Leone?
- The lowest recorded value was 1.69 units per square kilometre in 1961.
- How does Sierra Leone rank for population in urban agglomerations of more than 1 million, per square?
- Sierra Leone ranks 58th out of 121 countries with data for 2023.
- Is population in urban agglomerations of more than 1 million, per square rising or falling in Sierra Leone?
- Over the last ten years it is up 32.8%. The long-run trend across the full record is volatile.
- Where does this Sierra Leone data come from?
- The figures come from Statizoid (derived), published as part of Population in urban agglomerations of more than 1 million, per square kilometre. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 63 observations, free to reuse under Derived by Statizoid from the sources named on the page.
How this figure is calculated
Population in urban agglomerations of more than 1 million divided by Land area (sq. km), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.
Population in urban agglomerations of more than 1 million ÷ Land area (sq. km)
Computed from
- Population in urban agglomerations of more than 1 million World Urbanization Prospects 2018, United Nations (UN)
- Land area FAOSTAT, Food and Agriculture Organization of the United Nations (FAO)
Statizoid computes this series; the underlying measurements belong to the publishers named above. The arithmetic is applied to every country and year where both inputs report, and nothing is estimated unless the page says so.
About this data
Population in urban agglomerations of more than 1 million divided by Land area (sq. km), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.