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

Updated on by Georank

The latest officially reported population of Mauritius was 1,243,741 in 2025 vs 8,819,794 people in Sierra Leone in 2025. In 2026, based on the adjusted UN estimation, the current Mauritius' population is 1,240,721 people compared to 9,090,531 in Sierra Leone.

Population statistics:

  • Sierra Leone's population is 7.33 times bigger than Mauritius'.
  • Mauritius is ranked the 157th most populous country in the world, while Sierra Leone is the 100th.
  • The countries together account for 0.12% of the world: 0.01% for Mauritius vs 0.11% for Sierra Leone.
  • For the last 10 years, Mauritius has had an average growth rate of -0.13% per year vs +2.29% in Sierra Leone.
  • Since 2006, the population of Mauritius has increased from 1.23M people to 1.24M (0.54% growth), while Sierra Leone has grown from 5.62M to 9.09M (61.6% growth).

Mauritius vs Sierra Leone: population by year and forecast

Mauritius
Factual

Projection
Sierra Leone
Factual

Projection
1x
Year Population
Mauritius Sierra Leone
2100 573,815 16,107,087
2099 582,097 16,121,940
2098 590,562 16,135,035
2097 599,251 16,149,905
2096 608,134 16,160,672
2095 617,230 16,169,304
2094 626,529 16,168,902
2093 636,052 16,173,609
2092 645,739 16,170,778
2091 655,617 16,163,901
2090 665,663 16,154,165
2089 675,889 16,142,526
2088 686,240 16,128,775
2087 696,717 16,112,585
2086 707,360 16,085,549
2085 718,105 16,064,212
2084 728,910 16,040,563
2083 739,778 16,006,923
2082 750,765 15,970,872
2081 761,750 15,930,880
2080 772,748 15,892,665
2079 783,786 15,850,728
2078 794,837 15,801,450
2077 805,918 15,750,408
2076 816,942 15,695,310
2075 827,927 15,635,345
2074 838,911 15,580,279
2073 849,873 15,512,655
2072 860,821 15,442,481
2071 871,644 15,370,747
2070 882,518 15,293,426
2069 893,282 15,212,664
2068 903,984 15,124,069
2067 914,668 15,028,190
2066 925,317 14,931,295
2065 935,999 14,833,794
2064 946,603 14,736,872
2063 957,115 14,638,180
2062 967,627 14,525,736
2061 978,076 14,420,068
2060 988,500 14,307,451
2059 998,838 14,194,972
2058 1,009,091 14,077,124
2057 1,019,346 13,957,197
2056 1,029,601 13,832,494
2055 1,039,730 13,702,508
2054 1,049,821 13,576,231
2053 1,059,876 13,440,929
2052 1,069,793 13,299,910
2051 1,079,612 13,152,910
2050 1,089,300 13,006,688
2049 1,098,902 12,863,637
2048 1,108,341 12,712,671
2047 1,117,590 12,566,944
2046 1,126,567 12,411,042
2045 1,135,321 12,254,651
2044 1,143,708 12,088,895
2043 1,151,882 11,928,393
2042 1,159,639 11,767,372
2041 1,167,107 11,599,942
2040 1,174,241 11,428,331
2039 1,181,008 11,259,845
2038 1,187,347 11,097,180
2037 1,193,347 10,928,754
2036 1,199,055 10,757,928
2035 1,204,453 10,582,918
2034 1,209,521 10,411,088
2033 1,214,292 10,238,503
2032 1,218,727 10,059,929
2031 1,222,858 9,881,109
2030 1,226,642 9,705,485
2029 1,230,401 9,529,493
2028 1,234,008 9,358,412
2027 1,237,431 9,177,288
2026 1,240,721 8,998,902
2025 1,243,741 8,819,794
2024 1,245,779 8,642,022
2023 1,248,647 8,460,512
2022 1,262,523 8,276,807
2021 1,266,334 8,094,602
2020 1,266,014 7,912,558
2019 1,265,985 7,731,991
2018 1,265,577 7,554,563
2017 1,264,887 7,379,299
2016 1,263,747 7,205,328
2015 1,262,879 7,037,655
2014 1,261,208 6,876,385
2013 1,258,927 6,714,051
2012 1,255,882 6,551,080
2011 1,252,404 6,387,251
2010 1,250,400 6,222,714
2009 1,247,429 6,055,646
2008 1,244,121 5,894,722
2007 1,239,630 5,749,352
2006 1,233,996 5,624,466
2005 1,228,254 5,501,712
2004 1,221,003 5,355,717
2003 1,213,370 5,177,687
2002 1,204,621 4,971,435
2001 1,196,287 4,692,716
2000 1,186,873 4,423,611
1999 1,175,267 4,318,043
1998 1,160,421 4,295,785
1997 1,148,284 4,253,716
1996 1,133,996 4,199,210
1995 1,122,457 4,179,179
1994 1,112,846 4,173,105
1993 1,097,374 4,157,130
1992 1,084,441 4,166,366
1991 1,070,266 4,246,267
1990 1,058,775 4,196,828
1989 1,051,260 4,034,037
1988 1,043,239 3,934,517
1987 1,036,082 3,829,718
1986 1,028,360 3,728,380
1985 1,020,528 3,638,438
1984 1,012,221 3,558,758
1983 1,001,691 3,481,646
1982 992,521 3,408,183
1981 980,462 3,338,940
1980 966,039 3,272,089
1979 949,888 3,207,499
1978 933,499 3,145,517
1977 921,379 3,085,354
1976 906,507 3,028,820
1975 892,000 2,974,657
1974 878,042 2,920,459
1973 864,819 2,866,955
1972 852,053 2,814,388
1971 839,230 2,763,222
1970 826,000 2,712,286
1969 812,405 2,661,365
1968 798,413 2,611,532
1967 783,917 2,562,384
1966 768,813 2,514,638
1965 753,000 2,468,666
1964 736,381 2,424,390
1963 718,861 2,382,258
1962 700,349 2,342,242
1961 680,757 2,304,227
1960 680,331 2,268,356

Data sources: United Nations | World Population Prospects (2026–2100, retrieved 2026-07-08); World Bank | Health (1960–2025, retrieved 2026-07-08).

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

From 2006 to 2016, the population of Mauritius increased by 29,751 people (a 2.41% growth), while Sierra Leone gained 1,580,862 people (a 28.1% growth).

For the next 10 years, from 2016 to 2026, Mauritius lost 23,026 people (a 1.82% decline), while Sierra Leone's population increased by 1,885,203 people (a 26.2% growth).

Mauritius was ranked 151st most populous country in 2006 and is 157th in 2026. Sierra Leone was ranked 105th in 2006 and ranked 100th now.

The UN's World Population Prospects forecasts that in 24 years (in 2050) Mauritius' population will shrink by 12.2% to 1,089,300 people with a rank change from 157th to 160th. The population of Sierra Leone will increase by 43.1% to 13,006,688 people and rank change from 100th to 91st.

Sierra Leone is projected to reach its peak in 2093 at 16.2M people, while Mauritius' population already peaked in 2021 at 1.27M people and is projected to decrease to 574K people by 2100.

Population growth rate by year

Mauritius
Factual

Projection
Sierra Leone
Factual

Projection
1x
Year Growth rate
Mauritius Sierra Leone
2100 -1.42% -0.09%
2099 -1.43% -0.08%
2098 -1.45% -0.09%
2097 -1.46% -0.07%
2096 -1.47% -0.05%
2095 -1.48% 0.002%
2094 -1.5% -0.03%
2093 -1.5% 0.02%
2092 -1.51% 0.04%
2091 -1.51% 0.06%
2090 -1.51% 0.07%
2089 -1.51% 0.09%
2088 -1.5% 0.1%
2087 -1.5% 0.17%
2086 -1.5% 0.13%
2085 -1.48% 0.15%
2084 -1.47% 0.21%
2083 -1.46% 0.23%
2082 -1.44% 0.25%
2081 -1.42% 0.24%
2080 -1.41% 0.26%
2079 -1.39% 0.31%
2078 -1.38% 0.32%
2077 -1.35% 0.35%
2076 -1.33% 0.38%
2075 -1.31% 0.35%
2074 -1.29% 0.44%
2073 -1.27% 0.45%
2072 -1.24% 0.47%
2071 -1.23% 0.51%
2070 -1.21% 0.53%
2069 -1.18% 0.59%
2068 -1.17% 0.64%
2067 -1.15% 0.65%
2066 -1.14% 0.66%
2065 -1.12% 0.66%
2064 -1.1% 0.67%
2063 -1.09% 0.77%
2062 -1.07% 0.73%
2061 -1.05% 0.79%
2060 -1.04% 0.79%
2059 -1.02% 0.84%
2058 -1.01% 0.86%
2057 -1% 0.9%
2056 -0.97% 0.95%
2055 -0.96% 0.93%
2054 -0.95% 1.01%
2053 -0.93% 1.06%
2052 -0.91% 1.12%
2051 -0.89% 1.12%
2050 -0.87% 1.11%
2049 -0.85% 1.19%
2048 -0.83% 1.16%
2047 -0.8% 1.26%
2046 -0.77% 1.28%
2045 -0.73% 1.37%
2044 -0.71% 1.35%
2043 -0.67% 1.37%
2042 -0.64% 1.44%
2041 -0.61% 1.5%
2040 -0.57% 1.5%
2039 -0.53% 1.47%
2038 -0.5% 1.54%
2037 -0.48% 1.59%
2036 -0.45% 1.65%
2035 -0.42% 1.65%
2034 -0.39% 1.69%
2033 -0.36% 1.78%
2032 -0.34% 1.81%
2031 -0.31% 1.81%
2030 -0.31% 1.85%
2029 -0.29% 1.83%
2028 -0.28% 1.97%
2027 -0.27% 1.98%
2026 -0.24% 2.03%
2025 -0.16% 2.06%
2024 -0.23% 2.15%
2023 -1.1% 2.22%
2022 -0.3% 2.25%
2021 0.03% 2.3%
2020 0.002% 2.34%
2019 0.03% 2.35%
2018 0.05% 2.38%
2017 0.09% 2.41%
2016 0.07% 2.38%
2015 0.13% 2.35%
2014 0.18% 2.42%
2013 0.24% 2.49%
2012 0.28% 2.56%
2011 0.16% 2.64%
2010 0.24% 2.76%
2009 0.27% 2.73%
2008 0.36% 2.53%
2007 0.46% 2.22%
2006 0.47% 2.23%
2005 0.59% 2.73%
2004 0.63% 3.44%
2003 0.73% 4.15%
2002 0.7% 5.94%
2001 0.79% 6.08%
2000 0.99% 2.44%
1999 1.28% 0.52%
1998 1.06% 0.99%
1997 1.26% 1.3%
1996 1.03% 0.48%
1995 0.86% 0.15%
1994 1.41% 0.38%
1993 1.19% -0.22%
1992 1.32% -1.88%
1991 1.09% 1.18%
1990 0.71% 4.04%
1989 0.77% 2.53%
1988 0.69% 2.74%
1987 0.75% 2.72%
1986 0.77% 2.47%
1985 0.82% 2.24%
1984 1.05% 2.21%
1983 0.92% 2.16%
1982 1.23% 2.07%
1981 1.49% 2.04%
1980 1.7% 2.01%
1979 1.76% 1.97%
1978 1.32% 1.95%
1977 1.64% 1.87%
1976 1.63% 1.82%
1975 1.59% 1.86%
1974 1.53% 1.87%
1973 1.5% 1.87%
1972 1.53% 1.85%
1971 1.6% 1.88%
1970 1.67% 1.91%
1969 1.75% 1.91%
1968 1.85% 1.92%
1967 1.96% 1.9%
1966 2.1% 1.86%
1965 2.26% 1.83%
1964 2.44% 1.77%
1963 2.64% 1.71%
1962 2.88% 1.65%
1961 0.06% 1.58%

Data sources: United Nations | World Population Prospects (2026–2100, retrieved 2026-07-08); World Bank | Health (1961–2025, retrieved 2026-07-08).

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

In 2025, the population of Mauritius declined by 0.16%, while Sierra Leone's population grew by 2.06%.

Live population counters

Mauritius Sierra Leone
Current population
1240721
9090531
Population rank 157/197 100/197
Percent of world population 0.01% 0.11%
One net population change
4.31 hours
2.96 minutes
One birth every
41 minutes
2.02 minutes
One death every
42.2 minutes
7.41 minutes
Daily growth/decline -6 +487
Annual growth/decline -2,038 +177,772
Annual growth/decline rate -0.16% +2.06%
Population growth rate rank 171/197 47/197
One migration net change every
3.16 hours
46.6 minutes
Annual migration change -2,784 -11,309
Net migration rank 103/196 136/196
Foreign-born residents 29,142 49,997
Foreign-born residents rank 165/195 151/195
Foreign-born share of population 2.3% 0.6%
Foreign-born share rank 129/195 174/195

Natural population change vs migration

Mauritius
Natural

Migration
Sierra Leone
Natural

Migration
1x
Year Population change
Mauritius Sierra Leone
Natural Migration Natural Migration
2025 - -2,784 - -11,309
2024 374 -2,787 189,234 -11,000
2023 999 -2,824 188,788 -4,000
2022 -757 -2,824 186,625 -4,000
2021 -380 -4,324 183,326 -1,544
2020 2,406 -5,895 181,015 1,292
2019 1,646 -5,202 181,068 -2,238
2018 2,152 -5,084 178,772 -2,741
2017 3,289 -5,322 173,259 1,234
2016 2,906 -4,483 168,784 4,657
2015 2,905 -3,645 162,275 -356
2014 3,657 -3,691 160,137 485
2013 4,281 -3,617 161,265 2,773
2012 5,023 -3,663 160,915 988
2011 5,511 -2,465 158,858 6,895
2010 5,877 -2,624 155,338 7,983
2009 6,113 -2,467 152,669 18,145
2008 7,465 -2,589 149,855 1,182
2007 8,429 -2,642 145,740 -6,042
2006 8,515 -2,757 144,127 -34,052
2005 10,195 -2,840 137,234 -1,805
2004 10,745 -3,001 132,661 23,897
2003 10,799 -3,141 130,312 69,185
2002 11,685 -3,150 126,429 86,578
2001 11,723 -3,225 116,647 227,791
2000 12,224 -2,326 110,754 83,013
1999 12,341 -1,463 102,295 -84,926
1998 11,489 -1,292 103,906 -76,766
1997 11,943 -1,199 105,433 -48,437
1996 13,041 -1,092 104,140 -52,110
1995 13,020 -1,144 100,885 -112,857
1994 14,355 -1,112 101,486 -77,371
1993 14,814 -1,189 103,317 -95,476
1992 15,833 -1,254 103,251 -129,565
1991 15,091 -1,333 105,477 -238,965
1990 15,564 -1,938 100,778 131,587
1989 14,718 -2,463 98,298 -5,079
1988 14,084 -1,399 96,344 9,470
1987 13,262 -300 94,235 9,558
1986 12,340 852 90,902 7,992
1985 12,451 615 88,869 -7,873
1984 13,665 -258 87,072 -8,708
1983 14,525 -1,756 84,628 -8,783
1982 15,880 -2,226 82,457 -11,379
1981 18,334 -1,559 80,111 -12,699
1980 19,321 -1,739 77,932 -11,641
1979 19,282 -2,363 75,992 -13,095
1978 18,670 -3,129 74,130 -13,073
1977 16,769 -3,749 71,663 -12,399
1976 16,407 -3,807 69,506 -15,686
1975 15,342 -3,869 67,560 -13,058
1974 17,561 -4,908 65,357 -11,473
1973 13,145 -2,144 62,443 -9,322
1972 14,825 -2,408 60,279 -8,267
1971 15,441 -960 58,484 -8,162
1970 16,190 -1,281 56,513 -4,957
1969 15,761 -674 54,768 -4,485
1968 17,884 -2,445 53,126 -3,743
1967 17,560 -1,257 51,734 -2,819
1966 20,758 -4,123 49,486 -2,911
1965 20,482 -3,597 47,223 -1,851
1964 22,239 -4,850 45,487 -2,308
1963 22,069 -5,236 43,569 -2,480
1962 20,660 -6,107 41,603 -2,658
1961 20,355 -8,984 40,022 -2,947
1960 19,931 -7,083 38,192 -3,528

Data sources: World Bank | Health (1960–2025, retrieved 2026-07-08).

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

Over the last 10 years, 26.8% of the population change in Mauritius is from natural causes (a gain of 15,540 people) and 73.2% is from migration (a loss of 42,390 people). In Sierra Leone 99% is from natural causes (a gain of 1,793,146 people) and 1.03% is from migration (a loss of 18,696 people).

As of 2024, 29,142 residents or 2.3% of the population were not native-born in Mauritius, compared to 49,997 people or 0.6% in Sierra Leone.

Biggest cities by population

Mauritius
City Population
Port Louis 149K
Quatre Bornes 81.8K
Curepipe 77.5K
Triolet 23.4K
Goodlands 20.7K
Centre de Flacq 15.8K
Mahebourg 15.8K
Bambous 15.3K
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 (1960–2025, retrieved 2026-07-08); United Nations | World Population Prospects (1960–2026, retrieved 2026-07-08); U.S. Census Bureau (1960–2025, retrieved 2026-07-08); Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-07-08).

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

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Data sources:

  1. World Bank | Health (1960–2025, retrieved 2026-07-08)
  2. United Nations | World Population Prospects (1960–2100, retrieved 2026-07-08)
  3. U.S. Census Bureau (1960–2025, retrieved 2026-07-08)
  4. Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-07-08)
  5. Wikidata (2026, retrieved 2026-07-08)

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