Sierra Leone's Population Size

NUMBER OF PEOPLE LIVING IN EACH COUNTRY

Sierra Leone's population is estimated by the United Nations to be 8.5 million in 2023.

Sierra Leone last conducted a national census in 2015 and 90.4% of births in Sierra Leone are recorded. Read more from the World Economics Population Data Quality Ratings and see how Sierra Leone compares to other countries around the world and in the Africa region.

Sierra Leone's data is highlighted in the table below, use the filter and sort order options to allow easy comparison with other countries.

Data source: United Nations, Washington D.C., Eurostat, Luxembourg and World Economics Research, London


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    Population Size
Country Population Data Quality
(A-E)		 1970
(Million)		 1980
(Million)		 1990
(Million)		 2000
(Million)		 2010
(Million)		 2023
(Million)		 2050
(Million)



India C 555.2 699.0 873.3 1,056.6 1,234.3 1,438.1 1,679.6
China A 827.6 1,000.1 1,176.9 1,290.6 1,368.8 1,422.6 1,260.3
United States A 209.5 229.5 252.1 281.7 309.0 343.5 380.8
Indonesia B 114.8 147.4 181.4 211.5 241.8 281.2 320.7
Pakistan D 58.1 78.1 107.6 142.3 179.4 247.5 371.9
Nigeria E 56.0 73.4 95.2 122.3 158.5 227.9 359.2
Brazil A 95.1 120.7 149.0 174.8 195.7 211.1 217.5
Bangladesh E 64.2 79.6 103.2 127.7 147.6 171.5 214.7
Russia A 130.1 138.1 147.5 146.4 143.5 145.4 136.1
Mexico A 51.5 67.8 83.9 98.9 114.1 129.7 148.9
Ethiopia E 28.4 35.1 47.9 66.2 87.6 128.7 225.0
Japan A 104.9 117.8 124.5 127.5 128.5 124.4 105.1
Philippines B 35.8 47.4 61.9 78.0 94.0 114.9 134.4
Egypt B 34.5 43.3 56.1 68.8 82.8 114.5 161.6
Congo, Dem. Rep E 20.0 26.4 34.6 47.1 64.6 105.8 218.2
Vietnam B 43.4 54.3 68.0 79.9 88.0 100.4 110.0
Türkiye A 34.9 44.0 53.9 63.2 72.3 87.3 91.3
Germany B 78.6 78.3 79.1 81.4 80.8 84.5 78.3
Thailand A 36.9 47.4 56.6 63.0 67.2 71.7 66.4
United Kingdom A 55.6 56.2 57.1 58.9 63.5 68.7 75.5
Tanzania E 13.5 18.5 25.2 33.5 44.3 66.6 129.6
France A 50.8 53.9 56.7 59.0 62.9 66.4 68.2
South Africa C 22.1 28.6 36.8 45.0 51.2 63.2 79.2
Italy B 53.5 56.3 57.0 56.7 59.3 59.5 51.9
Kenya D 11.3 16.4 23.7 32.0 42.0 55.3 83.6
Myanmar C 27.3 34.2 41.3 46.7 50.6 54.1 58.6
Colombia B 21.5 26.9 33.1 39.6 45.2 52.3 59.4
Korea, Rep. A 32.2 38.0 42.9 47.4 49.5 51.7 45.1
Sudan E 10.3 14.5 20.1 27.3 34.5 50.0 85.2
Uganda E 9.4 12.4 17.4 23.7 32.4 48.7 85.4
Spain B 33.9 37.7 39.2 40.8 46.9 47.9 44.9
Algeria C 14.5 19.2 25.8 31.0 36.0 46.2 59.6
Argentina A 23.9 27.9 32.6 36.9 40.9 45.5 48.3
Afghanistan E 11.2 13.4 12.4 20.8 29.2 41.5 76.9
Yemen, Rep. E 6.2 7.9 11.7 17.4 23.2 39.4 71.0
Canada A 21.4 24.4 27.5 30.6 34.1 39.3 45.6
Poland A 32.6 35.5 38.0 38.6 38.3 38.8 32.8
Ukraine B 47.1 50.0 51.5 48.8 45.8 37.7 32.0
Morocco C 16.0 20.0 24.8 28.8 32.3 37.7 43.4
Angola E 5.9 8.3 11.8 16.4 23.4 36.7 74.3
Uzbekistan E 12.1 15.9 20.4 24.8 28.5 35.7 52.2
Malaysia B 10.8 13.8 18.0 23.2 28.2 35.1 44.3
Peru B 13.5 17.5 22.1 26.5 29.0 33.8 40.6
Ghana C 8.7 11.1 14.8 19.3 24.8 33.8 50.6
Mozambique D 9.0 11.6 13.0 17.7 23.5 33.6 63.5
Saudi Arabia A 5.8 9.7 16.2 20.7 27.4 33.3 47.7
Madagascar D 6.6 8.7 11.6 15.8 21.2 31.2 53.2
Cote d'Ivoire D 5.1 8.0 11.9 16.5 20.5 31.2 55.7
Nepal D 12.1 15.0 18.9 23.9 27.0 29.7 34.6
Cameroon E 6.5 8.6 11.8 15.5 20.3 28.4 51.1
Australia A 12.8 14.6 17.0 19.0 22.2 26.5 32.5
Niger E 4.5 6.0 8.0 11.3 16.5 26.2 52.5
Mali C 5.9 7.1 8.4 10.9 15.0 23.8 46.2
Taiwan A 14.9 17.9 20.5 22.0 23.2 23.3 19.4
Burkina Faso C 5.6 6.8 8.8 11.6 15.6 23.0 37.3
Sri Lanka C 12.5 15.0 17.3 18.8 20.3 23.0 24.8
Malawi D 4.7 6.3 9.4 11.1 14.5 21.1 37.4
Zambia E 4.2 5.9 8.0 10.4 13.6 20.7 38.1
Kazakhstan A 13.0 14.8 16.4 14.9 16.3 20.3 26.5
Chile B 9.8 11.4 13.3 15.3 17.1 19.7 20.3
Chad E 3.6 4.5 6.0 8.4 12.0 19.3 38.9
Romania C 20.5 22.6 23.5 22.1 20.5 19.1 16.0
Guatemala C 5.6 7.3 9.3 11.7 14.6 18.1 24.7
Netherlands B 13.0 14.1 15.0 15.9 16.7 18.1 19.0
Senegal D 4.3 5.6 7.5 9.8 12.7 18.1 30.4
Ecuador D 6.1 8.0 10.2 12.7 15.0 18.0 21.3
Cambodia D 7.0 6.7 9.0 12.2 14.3 17.4 21.9
Zimbabwe E 5.3 7.4 10.4 11.9 12.7 16.3 25.9
Guinea E 4.2 4.9 6.4 8.2 10.2 14.4 23.4
Benin D 2.9 3.7 5.0 6.9 9.2 14.1 24.4
Rwanda D 3.8 5.2 7.3 7.9 10.0 14.0 22.7
Burundi E 3.5 4.2 5.4 6.4 8.7 13.7 24.1
Bolivia D 4.5 5.6 6.9 8.4 10.0 12.2 16.1
Tunisia C 5.1 6.4 8.2 9.7 10.6 12.2 13.1
Belgium B 9.6 9.9 10.0 10.3 10.9 11.7 11.9
Haiti E 4.7 5.6 7.0 8.5 9.9 11.6 14.7
Jordan C 1.7 2.4 3.6 5.1 7.3 11.4 16.4
Dominican Republic D 4.5 5.8 7.1 8.5 9.7 11.3 13.0
Czechia B 9.8 10.3 10.3 10.3 10.5 10.8 9.8
Honduras D 2.7 3.7 5.0 6.6 8.3 10.6 14.8
United Arab Emirates C 0.2 1.0 1.8 3.1 8.5 10.6 15.4
Sweden B 8.1 8.3 8.6 8.9 9.4 10.6 11.3
Portugal B 8.7 9.8 9.9 10.3 10.6 10.4 9.8
Tajikistan B 2.9 3.9 5.3 6.2 7.5 10.4 15.6
Papua New Guinea E 2.8 3.6 4.6 5.8 7.3 10.4 14.9
Azerbaijan B 5.2 6.2 7.2 8.1 9.0 10.3 11.2
Greece B 8.7 9.6 10.2 11.1 10.9 10.2 8.8
Hungary D 10.4 10.8 10.4 10.2 9.9 9.7 8.7
Togo D 2.1 2.7 3.8 4.9 6.4 9.3 15.6
Israel C 2.8 3.7 4.4 5.9 7.3 9.3 13.1
Austria B 7.5 7.6 7.7 8.1 8.4 9.1 8.7
Belarus A 8.9 9.6 10.2 9.9 9.4 9.1 7.5
Switzerland C 6.2 6.3 6.7 7.1 7.8 8.9 9.3
Sierra Leone C 2.7 3.4 4.3 4.6 6.4 8.5 12.9
Laos D 2.7 3.3 4.3 5.3 6.2 7.7 9.8
Hong Kong A 3.8 4.9 5.7 6.6 7.0 7.4 6.1
Turkmenistan B 2.2 2.9 3.7 4.5 5.1 7.4 9.6
Libya E 2.1 3.2 4.4 5.4 6.2 7.3 9.3
Kyrgyzstan A 3.0 3.6 4.4 4.9 5.4 7.1 9.6
Paraguay D 2.5 3.2 4.2 5.3 6.2 6.8 8.6
Nicaragua E 2.4 3.3 4.2 5.1 5.8 6.8 8.8
Bulgaria C 8.5 8.9 8.8 8.0 7.4 6.8 5.4
Serbia C 8.1 8.9 9.5 9.5 9.0 6.8 5.5
El Salvador D 3.7 4.6 5.3 5.9 6.2 6.3 6.7
Congo, Rep. E 1.3 1.8 2.4 3.1 4.3 6.2 11.0
Denmark B 4.9 5.1 5.1 5.3 5.6 5.9 6.1
Singapore A 2.1 2.4 3.0 4.0 5.1 5.8 6.1
Lebanon E 2.3 2.6 2.8 3.8 5.0 5.8 7.0
Finland C 4.6 4.8 5.0 5.2 5.4 5.6 5.4
Norway B 3.9 4.1 4.2 4.5 4.9 5.5 5.9
Slovak Republic D 4.5 5.0 5.3 5.4 5.4 5.5 4.9
Liberia E 1.4 1.9 2.1 2.8 3.9 5.5 8.9
Ireland A 2.9 3.4 3.5 3.8 4.6 5.2 6.0
New Zealand A 2.8 3.1 3.4 3.9 4.4 5.2 5.8
Central African Republic E 1.8 2.2 2.8 3.6 4.4 5.2 10.6
Costa Rica C 1.8 2.4 3.1 4.0 4.6 5.1 5.4
Oman A 0.7 1.2 1.8 2.3 3.0 5.0 7.8
Mauritania E 1.1 1.5 2.0 2.6 3.5 5.0 9.4
Kuwait A 0.7 1.4 2.1 2.0 3.0 4.8 6.4
Panama C 1.5 2.0 2.5 3.0 3.6 4.5 5.6
Croatia C 4.4 4.6 4.8 4.4 4.3 3.9 3.2
Georgia B 4.7 5.0 5.4 4.4 4.1 3.8 3.7
Mongolia A 1.3 1.7 2.2 2.4 2.7 3.4 4.5
Uruguay C 2.8 2.9 3.1 3.3 3.4 3.4 3.3
Bosnia and Herzegovina C 3.8 4.2 4.5 3.8 3.7 3.2 2.5
Moldova B 3.6 4.0 4.4 4.2 4.1 3.1 2.4
Qatar A 0.1 0.2 0.5 0.6 1.9 3.0 4.2
Namibia E 0.8 1.1 1.4 1.8 2.1 3.0 4.5
Armenia A 2.5 3.1 3.5 3.1 2.9 2.9 2.5
Lithuania C 3.1 3.4 3.7 3.5 3.1 2.9 2.3
Jamaica D 1.9 2.2 2.4 2.7 2.8 2.8 2.5
Albania C 2.2 2.7 3.3 3.1 2.9 2.8 2.2
Gambia E 0.5 0.6 1.0 1.3 1.8 2.7 4.3
Gabon D 0.6 0.7 0.9 1.2 1.6 2.5 4.1
Botswana D 0.6 0.9 1.3 1.6 2.0 2.5 3.4
Lesotho E 1.0 1.3 1.7 2.0 2.0 2.3 3.0
Guinea-Bissau E 0.7 0.8 1.0 1.2 1.5 2.2 3.4
Slovenia A 1.7 1.8 2.0 2.0 2.0 2.1 2.0
Latvia D 2.4 2.5 2.7 2.4 2.1 1.9 1.5
North Macedonia B 1.7 1.9 2.0 2.0 2.1 1.8 1.5
Bahrain C 0.2 0.4 0.5 0.7 1.2 1.6 2.1
Estonia D 1.4 1.5 1.6 1.4 1.3 1.4 1.2
Cyprus B 0.6 0.7 0.8 0.9 1.1 1.3 1.5
Mauritius A 0.8 1.0 1.1 1.2 1.2 1.3 1.1
Eswatini D 0.4 0.6 0.8 1.0 1.1 1.2 1.5
Comoros D 0.2 0.3 0.4 0.5 0.7 0.9 1.3
Guyana D 0.7 0.8 0.7 0.7 0.7 0.8 0.9
Bhutan C 0.3 0.4 0.5 0.6 0.7 0.8 0.9
Luxembourg B 0.3 0.4 0.4 0.4 0.5 0.7 0.8
Suriname D 0.4 0.4 0.4 0.5 0.5 0.6 0.7
Malta B 0.3 0.3 0.4 0.4 0.4 0.5 0.5
Bahamas, The C 0.2 0.2 0.3 0.3 0.4 0.4 0.4
Iceland B 0.2 0.2 0.3 0.3 0.3 0.4 0.4


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Key:
Data quality grade definitions:
         A: As good as it gets
         B: Good
         C: Use with caution
         D: Poor
         E: Extremely poor quality












SIERRA LEONE'S ECONOMICS
SIERRA LEONE'S DEMOGRAPHY
SIERRA LEONE'S ENVIRONMENT, SOCIAL & GOVERNANCE
PUBLIC SOURCE & RELATED DATA

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