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Population in Belgium compared to Sierra Leone: Trends, Charts, Rankings

Updated on by Georank team

The latest officially reported population of Belgium was 11,858,610 in 2024 vs 8,642,022 people in Sierra Leone in 2024. In 2026, based on the adjusted UN estimation, the current Belgium's population is 11,902,714 people compared to 9,049,533 in Sierra Leone.

Population statistics:

  • Belgium's population is 1.32 times bigger than Sierra Leone's.
  • Belgium is ranked the 83rd most populous country in the world, while Sierra Leone is the 101st.
  • The countries together account for 0.25% of the world: 0.14% for Belgium vs 0.11% for Sierra Leone.
  • For the last 10 years, Belgium has had an average growth rate of +0.55% per year vs +2.32% in Sierra Leone.
  • Since 2006, the population of Belgium has increased from 10.5M people to 11.9M (12.8% growth), while Sierra Leone has grown from 5.62M to 9.05M (60.9% growth).

Belgium vs Sierra Leone: population by year and forecast

Belgium
Factual

Projection
Sierra Leone
Factual

Projection
1x
Year Population
Belgium Sierra Leone
2100 11,193,616 16,111,324
2099 11,211,908 16,126,181
2098 11,230,002 16,139,280
2097 11,246,180 16,154,153
2096 11,261,636 16,164,923
2095 11,277,513 16,173,557
2094 11,293,934 16,173,155
2093 11,309,421 16,177,864
2092 11,325,500 16,175,032
2091 11,339,887 16,168,153
2090 11,354,304 16,158,415
2089 11,368,748 16,146,773
2088 11,384,019 16,133,018
2087 11,399,441 16,116,823
2086 11,413,731 16,089,780
2085 11,427,305 16,068,438
2084 11,441,192 16,044,782
2083 11,454,476 16,011,134
2082 11,468,827 15,975,073
2081 11,480,917 15,935,071
2080 11,494,860 15,896,846
2079 11,507,804 15,854,898
2078 11,522,057 15,805,607
2077 11,534,819 15,754,551
2076 11,546,262 15,699,439
2075 11,558,154 15,639,458
2074 11,571,164 15,584,377
2073 11,584,391 15,516,736
2072 11,597,605 15,446,543
2071 11,611,079 15,374,790
2070 11,627,079 15,297,449
2069 11,643,296 15,216,666
2068 11,660,663 15,128,048
2067 11,677,909 15,032,144
2066 11,696,417 14,935,222
2065 11,716,114 14,837,697
2064 11,736,957 14,740,749
2063 11,758,738 14,642,031
2062 11,780,812 14,529,557
2061 11,804,421 14,423,861
2060 11,825,799 14,311,215
2059 11,847,336 14,198,706
2058 11,867,449 14,080,827
2057 11,890,466 13,960,869
2056 11,911,901 13,836,132
2055 11,931,594 13,706,113
2054 11,950,146 13,579,802
2053 11,968,395 13,444,465
2052 11,984,694 13,303,409
2051 11,998,099 13,156,370
2050 12,008,766 13,010,109
2049 12,017,817 12,867,021
2048 12,024,879 12,716,015
2047 12,029,815 12,570,250
2046 12,032,975 12,414,307
2045 12,034,718 12,257,874
2044 12,034,116 12,092,075
2043 12,032,908 11,931,531
2042 12,030,714 11,770,467
2041 12,026,814 11,602,993
2040 12,023,124 11,431,337
2039 12,018,547 11,262,807
2038 12,012,586 11,100,099
2037 12,005,650 10,931,629
2036 11,999,298 10,760,758
2035 11,992,761 10,585,702
2034 11,985,730 10,413,826
2033 11,977,334 10,241,196
2032 11,969,302 10,062,575
2031 11,960,910 9,883,708
2030 11,951,381 9,708,038
2029 11,939,712 9,532,000
2028 11,927,038 9,360,873
2027 11,913,457 9,179,702
2026 11,898,731 9,001,269
2025 11,881,020 8,822,114
2024 11,858,610 8,642,022
2023 11,779,946 8,460,512
2022 11,680,210 8,276,807
2021 11,586,195 8,094,602
2020 11,538,604 7,912,558
2019 11,488,980 7,731,991
2018 11,427,054 7,554,563
2017 11,375,158 7,379,299
2016 11,331,422 7,205,328
2015 11,274,196 7,037,655
2014 11,209,057 6,876,385
2013 11,159,407 6,714,051
2012 11,106,932 6,551,080
2011 11,038,264 6,387,251
2010 10,895,586 6,222,714
2009 10,796,493 6,055,646
2008 10,709,973 5,894,722
2007 10,625,700 5,749,352
2006 10,547,958 5,624,466
2005 10,478,617 5,501,712
2004 10,421,137 5,355,717
2003 10,376,133 5,177,687
2002 10,332,785 4,971,435
2001 10,286,570 4,692,716
2000 10,251,250 4,423,611
1999 10,226,419 4,318,043
1998 10,203,008 4,295,785
1997 10,181,245 4,253,716
1996 10,156,637 4,199,210
1995 10,136,811 4,179,179
1994 10,115,603 4,173,105
1993 10,084,475 4,157,130
1992 10,045,158 4,166,366
1991 10,004,486 4,246,267
1990 9,967,379 4,196,828
1989 9,937,697 4,034,037
1988 9,901,664 3,934,517
1987 9,870,234 3,829,718
1986 9,861,823 3,728,380
1985 9,858,308 3,638,438
1984 9,855,372 3,558,758
1983 9,855,520 3,481,646
1982 9,856,303 3,408,183
1981 9,858,982 3,338,940
1980 9,859,242 3,272,089
1979 9,848,382 3,207,499
1978 9,839,534 3,145,517
1977 9,830,358 3,085,354
1976 9,818,227 3,028,820
1975 9,800,700 2,974,657
1974 9,772,419 2,920,459
1973 9,741,720 2,866,955
1972 9,711,115 2,814,388
1971 9,673,162 2,763,222
1970 9,655,549 2,712,286
1969 9,646,032 2,661,365
1968 9,618,756 2,611,532
1967 9,580,991 2,562,384
1966 9,527,807 2,514,638
1965 9,463,667 2,468,666
1964 9,378,113 2,424,390
1963 9,289,770 2,382,258
1962 9,220,578 2,342,242
1961 9,183,948 2,304,227
1960 9,153,489 2,268,356

Data sources: United Nations | World Population Prospects (2025–2100, retrieved 2026-03-10); World Bank | Health (1960–2024, retrieved 2026-04-06).

GeoRank.org/population/belgium/sierra-leone | CC BY

From 2006 to 2016, the population of Belgium increased by 783,464 people (a 7.43% growth), while Sierra Leone gained 1,580,862 people (a 28.1% growth).

For the next 10 years, from 2016 to 2026, Belgium gained 571,292 people (a 5.04% growth), while Sierra Leone's population increased by 1,844,205 people (a 25.6% growth).

Belgium was ranked 77th most populous country in 2006 and is 83rd in 2026. Sierra Leone was ranked 106th in 2006 and ranked 101st now.

The UN's World Population Prospects forecasts that in 24 years (in 2050) Belgium's population will grow by 0.89% to 12,008,766 people with a rank change from 83rd to 92nd. The population of Sierra Leone will increase by 43.8% to 13,010,109 people and rank change from 101st to 91st.

Belgium is projected to reach its peak in 2045 at 12M people compared to the peak of 16.2M people in 2093 for Sierra Leone.

Population growth rate by year

Belgium
Factual

Projection
Sierra Leone
Factual

Projection
1x
Year Growth rate
Belgium Sierra Leone
2100 -0.16% -0.09%
2099 -0.16% -0.08%
2098 -0.14% -0.09%
2097 -0.14% -0.07%
2096 -0.14% -0.05%
2095 -0.15% 0.002%
2094 -0.14% -0.03%
2093 -0.14% 0.02%
2092 -0.13% 0.04%
2091 -0.13% 0.06%
2090 -0.13% 0.07%
2089 -0.13% 0.09%
2088 -0.14% 0.1%
2087 -0.13% 0.17%
2086 -0.12% 0.13%
2085 -0.12% 0.15%
2084 -0.12% 0.21%
2083 -0.13% 0.23%
2082 -0.11% 0.25%
2081 -0.12% 0.24%
2080 -0.11% 0.26%
2079 -0.12% 0.31%
2078 -0.11% 0.32%
2077 -0.1% 0.35%
2076 -0.1% 0.38%
2075 -0.11% 0.35%
2074 -0.11% 0.44%
2073 -0.11% 0.45%
2072 -0.12% 0.47%
2071 -0.14% 0.51%
2070 -0.14% 0.53%
2069 -0.15% 0.59%
2068 -0.15% 0.64%
2067 -0.16% 0.65%
2066 -0.17% 0.66%
2065 -0.18% 0.66%
2064 -0.19% 0.67%
2063 -0.19% 0.77%
2062 -0.2% 0.73%
2061 -0.18% 0.79%
2060 -0.18% 0.79%
2059 -0.17% 0.84%
2058 -0.19% 0.86%
2057 -0.18% 0.9%
2056 -0.17% 0.95%
2055 -0.16% 0.93%
2054 -0.15% 1.01%
2053 -0.14% 1.06%
2052 -0.11% 1.12%
2051 -0.09% 1.12%
2050 -0.08% 1.11%
2049 -0.06% 1.19%
2048 -0.04% 1.16%
2047 -0.03% 1.26%
2046 -0.01% 1.28%
2045 0.005% 1.37%
2044 0.01% 1.35%
2043 0.02% 1.37%
2042 0.03% 1.44%
2041 0.03% 1.5%
2040 0.04% 1.5%
2039 0.05% 1.47%
2038 0.06% 1.54%
2037 0.05% 1.59%
2036 0.05% 1.65%
2035 0.06% 1.65%
2034 0.07% 1.69%
2033 0.07% 1.78%
2032 0.07% 1.81%
2031 0.08% 1.81%
2030 0.1% 1.85%
2029 0.11% 1.83%
2028 0.11% 1.97%
2027 0.12% 1.98%
2026 0.15% 2.03%
2025 0.19% 2.08%
2024 0.67% 2.15%
2023 0.85% 2.22%
2022 0.81% 2.25%
2021 0.41% 2.3%
2020 0.43% 2.34%
2019 0.54% 2.35%
2018 0.46% 2.38%
2017 0.39% 2.41%
2016 0.51% 2.38%
2015 0.58% 2.35%
2014 0.44% 2.42%
2013 0.47% 2.49%
2012 0.62% 2.56%
2011 1.31% 2.64%
2010 0.92% 2.76%
2009 0.81% 2.73%
2008 0.79% 2.53%
2007 0.74% 2.22%
2006 0.66% 2.23%
2005 0.55% 2.73%
2004 0.43% 3.44%
2003 0.42% 4.15%
2002 0.45% 5.94%
2001 0.34% 6.08%
2000 0.24% 2.44%
1999 0.23% 0.52%
1998 0.21% 0.99%
1997 0.24% 1.3%
1996 0.2% 0.48%
1995 0.21% 0.15%
1994 0.31% 0.38%
1993 0.39% -0.22%
1992 0.41% -1.88%
1991 0.37% 1.18%
1990 0.3% 4.04%
1989 0.36% 2.53%
1988 0.32% 2.74%
1987 0.09% 2.72%
1986 0.04% 2.47%
1985 0.03% 2.24%
1984 -0.002% 2.21%
1983 -0.008% 2.16%
1982 -0.03% 2.07%
1981 -0.003% 2.04%
1980 0.11% 2.01%
1979 0.09% 1.97%
1978 0.09% 1.95%
1977 0.12% 1.87%
1976 0.18% 1.82%
1975 0.29% 1.86%
1974 0.32% 1.87%
1973 0.32% 1.87%
1972 0.39% 1.85%
1971 0.18% 1.88%
1970 0.1% 1.91%
1969 0.28% 1.91%
1968 0.39% 1.92%
1967 0.56% 1.9%
1966 0.68% 1.86%
1965 0.91% 1.83%
1964 0.95% 1.77%
1963 0.75% 1.71%
1962 0.4% 1.65%
1961 0.33% 1.58%

Data sources: United Nations | World Population Prospects (2025–2100, retrieved 2026-03-10); World Bank | Health (1961–2024, retrieved 2026-04-06).

GeoRank.org/population/belgium/sierra-leone | CC BY

In 2024, the population of Belgium grew by 0.67%, while Sierra Leone's population grew by 2.15%.

Live population counters

Belgium Sierra Leone
Current population
11902714
9049533
Population rank 83/197 101/197
Percent of world population 0.14% 0.11%
One net population change
6.68 minutes
2.9 minutes
One birth every
4.75 minutes
2.03 minutes
One death every
4.75 minutes
7.5 minutes
Daily growth/decline +216 +497
Annual growth/decline +78,664 +181,510
Annual growth/decline rate +0.67% +2.15%
Population growth rate rank 119/197 47/197
One migration net change every
16.5 minutes
46.6 minutes
Annual migration change +31,989 -11,309
Net migration rank 28/196 136/196
Foreign-born residents 2,349,032 49,997
Foreign-born residents rank 30/195 151/195
Foreign-born share of population 20% 0.6%
Foreign-born share rank 30/195 174/195

Natural population change vs migration

Belgium
Natural

Migration
Sierra Leone
Natural

Migration
1x
Year Population change
Belgium Sierra Leone
Natural Migration Natural Migration
2025 - 31,989 - -11,309
2024 - 36,243 - -11,000
2023 0 41,679 188,788 -4,000
2022 -2,336 118,615 186,625 -4,000
2021 5,793 24,017 183,326 -1,544
2020 -12,692 43,777 181,015 1,292
2019 8,042 58,469 181,068 -2,238
2018 7,999 50,604 178,772 -2,741
2017 10,238 37,981 173,259 1,234
2016 14,731 28,090 168,784 4,657
2015 11,274 63,536 162,275 -356
2014 21,297 37,472 160,137 485
2013 16,739 28,066 161,265 2,773
2012 18,882 45,001 160,915 988
2011 25,388 52,464 158,858 6,895
2010 23,970 105,232 155,338 7,983
2009 23,752 97,175 152,669 18,145
2008 22,491 66,470 149,855 1,182
2007 23,376 59,911 145,740 -6,042
2006 21,096 53,574 144,127 -34,052
2005 15,718 50,576 137,234 -1,805
2004 16,673 35,143 132,661 23,897
2003 7,263 34,472 130,312 69,185
2002 7,233 39,404 126,429 86,578
2001 11,315 34,924 116,647 227,791
2000 12,302 13,952 110,754 83,013
1999 9,203 16,849 102,295 -84,926
1998 9,183 12,517 103,906 -76,766
1997 12,218 10,262 105,433 -48,437
1996 12,188 15,684 104,140 -52,110
1995 11,150 1,937 100,885 -112,857
1994 12,139 17,636 101,486 -77,371
1993 14,118 18,542 103,317 -95,476
1992 20,090 25,941 103,251 -129,565
1991 22,010 27,038 105,477 -238,965
1990 19,935 8,299 100,778 131,587
1989 13,912 7,301 98,298 -5,079
1988 14,853 3,929 96,344 9,470
1987 11,844 3,525 94,235 9,558
1986 5,917 2,964 90,902 7,992
1985 2,958 2,165 88,869 -7,873
1984 4,927 1,697 87,072 -8,708
1983 2,956 1,252 84,628 -8,783
1982 7,885 1,100 82,457 -11,379
1981 11,831 2,826 80,111 -12,699
1980 10,845 11,482 77,932 -11,641
1979 11,818 11,277 75,992 -13,095
1978 7,872 10,828 74,130 -13,073
1977 8,847 10,460 71,663 -12,399
1976 1,964 10,360 69,506 -15,686
1975 0 9,652 67,560 -13,058
1974 7,818 8,924 65,357 -11,473
1973 11,690 8,684 62,443 -9,322
1972 18,451 8,384 60,279 -8,267
1971 21,281 7,992 58,484 -8,162
1970 23,173 19,393 56,513 -4,957
1969 21,221 20,072 54,768 -4,485
1968 20,199 19,809 53,126 -3,743
1967 31,618 19,492 51,734 -2,819
1966 36,206 18,985 49,486 -2,911
1965 39,748 18,243 47,223 -1,851
1964 51,580 17,687 45,487 -2,308
1963 41,804 16,355 43,569 -2,480
1962 42,414 14,829 41,603 -2,658
1961 52,349 10,566 40,022 -2,947
1960 40,275 9,893 38,192 -3,528

Data sources: World Bank | Health (1960–2025, retrieved 2026-04-06).

GeoRank.org/population/belgium/sierra-leone | CC BY

Over the last 10 years, 11.3% of the population change in Belgium is from natural causes (a gain of 64,346 people) and 88.7% is from migration (a gain of 504,240 people). In Sierra Leone 99.6% is from natural causes (a gain of 1,764,049 people) and 0.41% is from migration (a loss of 7,211 people).

As of 2024, 2,349,032 residents or 20% of the population were not native-born in Belgium, compared to 49,997 people or 0.6% in Sierra Leone.

Biggest cities by population

Belgium
City Population
Brussels 1.25M
Antwerp 529K
Ghent 273K
Charleroi 204K
Liege 195K
Schaerbeek 133K
Anderlecht 121K
Bruges 119K
Namur 115K
Leuven 101K
Sierra Leone
City Population
Freetown 951K
Bo 234K
Kenema 188K

Compare countries by 7 more topics

Population map with other countries

1x

Data sources: World Bank | Health (1960–2024, retrieved 2026-04-06); United Nations | World Population Prospects (1960–2026, retrieved 2026-03-10); U.S. Census Bureau (1960–2025, retrieved 2026-02-08); Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-02-20).

GeoRank.org/population/belgium/sierra-leone | CC BY

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Data sources:

  1. World Bank | Health (1960–2025, retrieved 2026-04-06)
  2. United Nations | World Population Prospects (1960–2100, retrieved 2026-03-10)
  3. U.S. Census Bureau (1960–2025, retrieved 2026-02-08)
  4. Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-02-20)
  5. Wikidata (2026, retrieved 2026-02-08)

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