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

Updated on by Georank

The latest officially reported population of Lesotho was 2,363,325 in 2025 vs 8,819,794 people in Sierra Leone in 2025. In 2026, based on the adjusted UN estimation, the current Lesotho's population is 2,402,837 people compared to 9,090,531 in Sierra Leone.

Population statistics:

  • Sierra Leone's population is 3.78 times bigger than Lesotho's.
  • Lesotho is ranked the 143rd most populous country in the world, while Sierra Leone is the 100th.
  • The countries together account for 0.14% of the world: 0.03% for Lesotho vs 0.11% for Sierra Leone.
  • For the last 10 years, Lesotho has had an average growth rate of +1.17% per year vs +2.29% in Sierra Leone.
  • Since 2006, the population of Lesotho has increased from 1.95M people to 2.4M (23.5% growth), while Sierra Leone has grown from 5.62M to 9.09M (61.6% growth).

Lesotho vs Sierra Leone: population by year and forecast

Lesotho
Factual

Projection
Sierra Leone
Factual

Projection
1x
Year Population
Lesotho Sierra Leone
2100 3,280,518 16,107,087
2099 3,286,430 16,121,940
2098 3,292,231 16,135,035
2097 3,297,835 16,149,905
2096 3,302,758 16,160,672
2095 3,307,678 16,169,304
2094 3,311,734 16,168,902
2093 3,315,488 16,173,609
2092 3,319,391 16,170,778
2091 3,322,303 16,163,901
2090 3,324,499 16,154,165
2089 3,326,577 16,142,526
2088 3,328,210 16,128,775
2087 3,329,694 16,112,585
2086 3,330,185 16,085,549
2085 3,330,989 16,064,212
2084 3,331,214 16,040,563
2083 3,331,221 16,006,923
2082 3,330,964 15,970,872
2081 3,330,141 15,930,880
2080 3,328,997 15,892,665
2079 3,326,895 15,850,728
2078 3,324,376 15,801,450
2077 3,321,152 15,750,408
2076 3,317,581 15,695,310
2075 3,313,968 15,635,345
2074 3,308,905 15,580,279
2073 3,303,592 15,512,655
2072 3,297,913 15,442,481
2071 3,291,224 15,370,747
2070 3,283,387 15,293,426
2069 3,274,978 15,212,664
2068 3,265,887 15,124,069
2067 3,256,362 15,028,190
2066 3,246,639 14,931,295
2065 3,236,890 14,833,794
2064 3,226,227 14,736,872
2063 3,214,843 14,638,180
2062 3,202,027 14,525,736
2061 3,188,674 14,420,068
2060 3,174,740 14,307,451
2059 3,159,947 14,194,972
2058 3,144,797 14,077,124
2057 3,129,007 13,957,197
2056 3,112,877 13,832,494
2055 3,095,653 13,702,508
2054 3,078,317 13,576,231
2053 3,059,904 13,440,929
2052 3,040,402 13,299,910
2051 3,019,864 13,152,910
2050 2,999,214 13,006,688
2049 2,977,795 12,863,637
2048 2,955,487 12,712,671
2047 2,932,450 12,566,944
2046 2,909,071 12,411,042
2045 2,885,303 12,254,651
2044 2,861,140 12,088,895
2043 2,836,547 11,928,393
2042 2,811,435 11,767,372
2041 2,785,921 11,599,942
2040 2,760,167 11,428,331
2039 2,734,178 11,259,845
2038 2,707,996 11,097,180
2037 2,681,646 10,928,754
2036 2,654,540 10,757,928
2035 2,627,488 10,582,918
2034 2,600,669 10,411,088
2033 2,573,856 10,238,503
2032 2,547,137 10,059,929
2031 2,520,626 9,881,109
2030 2,494,444 9,705,485
2029 2,468,067 9,529,493
2028 2,441,673 9,358,412
2027 2,415,634 9,177,288
2026 2,389,322 8,998,902
2025 2,363,325 8,819,794
2024 2,337,423 8,642,022
2023 2,311,472 8,460,512
2022 2,286,110 8,276,807
2021 2,261,542 8,094,602
2020 2,235,727 7,912,558
2019 2,209,405 7,731,991
2018 2,183,603 7,554,563
2017 2,157,110 7,379,299
2016 2,130,422 7,205,328
2015 2,104,611 7,037,655
2014 2,080,089 6,876,385
2013 2,056,504 6,714,051
2012 2,034,354 6,551,080
2011 2,014,009 6,387,251
2010 1,996,251 6,222,714
2009 1,980,883 6,055,646
2008 1,966,541 5,894,722
2007 1,953,268 5,749,352
2006 1,945,063 5,624,466
2005 1,953,076 5,501,712
2004 1,971,129 5,355,717
2003 1,985,059 5,177,687
2002 1,994,679 4,971,435
2001 2,000,853 4,692,716
2000 2,003,913 4,423,611
1999 2,003,234 4,318,043
1998 1,998,049 4,295,785
1997 1,988,130 4,253,716
1996 1,972,418 4,199,210
1995 1,951,437 4,179,179
1994 1,927,707 4,173,105
1993 1,901,793 4,157,130
1992 1,873,274 4,166,366
1991 1,842,379 4,246,267
1990 1,809,696 4,196,828
1989 1,775,436 4,034,037
1988 1,739,841 3,934,517
1987 1,703,390 3,829,718
1986 1,666,138 3,728,380
1985 1,624,379 3,638,438
1984 1,578,986 3,558,758
1983 1,534,413 3,481,646
1982 1,490,732 3,408,183
1981 1,448,069 3,338,940
1980 1,406,521 3,272,089
1979 1,366,169 3,207,499
1978 1,327,240 3,145,517
1977 1,289,967 3,085,354
1976 1,253,214 3,028,820
1975 1,213,643 2,974,657
1974 1,172,420 2,920,459
1973 1,132,697 2,866,955
1972 1,094,063 2,814,388
1971 1,056,246 2,763,222
1970 1,019,273 2,712,286
1969 983,202 2,661,365
1968 948,105 2,611,532
1967 913,982 2,562,384
1966 881,870 2,514,638
1965 854,090 2,468,666
1964 829,437 2,424,390
1963 805,373 2,382,258
1962 781,814 2,342,242
1961 758,824 2,304,227
1960 736,500 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/lesotho/sierra-leone | CC BY

From 2006 to 2016, the population of Lesotho increased by 185,359 people (a 9.53% growth), while Sierra Leone gained 1,580,862 people (a 28.1% growth).

For the next 10 years, from 2016 to 2026, Lesotho gained 272,415 people (a 12.8% growth), while Sierra Leone's population increased by 1,885,203 people (a 26.2% growth).

Lesotho was ranked 144th most populous country in 2006 and is 143rd 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) Lesotho's population will grow by 24.8% to 2,999,214 people with a rank change from 143rd to 141st. The population of Sierra Leone will increase by 43.1% to 13,006,688 people and rank change from 100th to 91st.

Lesotho is projected to reach its peak in 2083 at 3.33M people compared to the peak of 16.2M people in 2093 for Sierra Leone.

Population growth rate by year

Lesotho
Factual

Projection
Sierra Leone
Factual

Projection
1x
Year Growth rate
Lesotho Sierra Leone
2100 -0.18% -0.09%
2099 -0.18% -0.08%
2098 -0.17% -0.09%
2097 -0.15% -0.07%
2096 -0.15% -0.05%
2095 -0.12% 0.002%
2094 -0.11% -0.03%
2093 -0.12% 0.02%
2092 -0.09% 0.04%
2091 -0.07% 0.06%
2090 -0.06% 0.07%
2089 -0.05% 0.09%
2088 -0.04% 0.1%
2087 -0.01% 0.17%
2086 -0.02% 0.13%
2085 -0.007% 0.15%
2084 -0% 0.21%
2083 0.008% 0.23%
2082 0.02% 0.25%
2081 0.03% 0.24%
2080 0.06% 0.26%
2079 0.08% 0.31%
2078 0.1% 0.32%
2077 0.11% 0.35%
2076 0.11% 0.38%
2075 0.15% 0.35%
2074 0.16% 0.44%
2073 0.17% 0.45%
2072 0.2% 0.47%
2071 0.24% 0.51%
2070 0.26% 0.53%
2069 0.28% 0.59%
2068 0.29% 0.64%
2067 0.3% 0.65%
2066 0.3% 0.66%
2065 0.33% 0.66%
2064 0.35% 0.67%
2063 0.4% 0.77%
2062 0.42% 0.73%
2061 0.44% 0.79%
2060 0.47% 0.79%
2059 0.48% 0.84%
2058 0.5% 0.86%
2057 0.52% 0.9%
2056 0.56% 0.95%
2055 0.56% 0.93%
2054 0.6% 1.01%
2053 0.64% 1.06%
2052 0.68% 1.12%
2051 0.69% 1.12%
2050 0.72% 1.11%
2049 0.75% 1.19%
2048 0.79% 1.16%
2047 0.8% 1.26%
2046 0.82% 1.28%
2045 0.84% 1.37%
2044 0.87% 1.35%
2043 0.89% 1.37%
2042 0.92% 1.44%
2041 0.93% 1.5%
2040 0.95% 1.5%
2039 0.97% 1.47%
2038 0.98% 1.54%
2037 1.02% 1.59%
2036 1.03% 1.65%
2035 1.03% 1.65%
2034 1.04% 1.69%
2033 1.05% 1.78%
2032 1.05% 1.81%
2031 1.05% 1.81%
2030 1.07% 1.85%
2029 1.08% 1.83%
2028 1.08% 1.97%
2027 1.1% 1.98%
2026 1.1% 2.03%
2025 1.11% 2.06%
2024 1.12% 2.15%
2023 1.11% 2.22%
2022 1.09% 2.25%
2021 1.15% 2.3%
2020 1.19% 2.34%
2019 1.18% 2.35%
2018 1.23% 2.38%
2017 1.25% 2.41%
2016 1.23% 2.38%
2015 1.18% 2.35%
2014 1.15% 2.42%
2013 1.09% 2.49%
2012 1.01% 2.56%
2011 0.89% 2.64%
2010 0.78% 2.76%
2009 0.73% 2.73%
2008 0.68% 2.53%
2007 0.42% 2.22%
2006 -0.41% 2.23%
2005 -0.92% 2.73%
2004 -0.7% 3.44%
2003 -0.48% 4.15%
2002 -0.31% 5.94%
2001 -0.15% 6.08%
2000 0.03% 2.44%
1999 0.26% 0.52%
1998 0.5% 0.99%
1997 0.8% 1.3%
1996 1.08% 0.48%
1995 1.23% 0.15%
1994 1.36% 0.38%
1993 1.52% -0.22%
1992 1.68% -1.88%
1991 1.81% 1.18%
1990 1.93% 4.04%
1989 2.05% 2.53%
1988 2.14% 2.74%
1987 2.24% 2.72%
1986 2.57% 2.47%
1985 2.87% 2.24%
1984 2.9% 2.21%
1983 2.93% 2.16%
1982 2.95% 2.07%
1981 2.95% 2.04%
1980 2.95% 2.01%
1979 2.93% 1.97%
1978 2.89% 1.95%
1977 2.93% 1.87%
1976 3.26% 1.82%
1975 3.52% 1.86%
1974 3.51% 1.87%
1973 3.53% 1.87%
1972 3.58% 1.85%
1971 3.63% 1.88%
1970 3.67% 1.91%
1969 3.7% 1.91%
1968 3.73% 1.92%
1967 3.64% 1.9%
1966 3.25% 1.86%
1965 2.97% 1.83%
1964 2.99% 1.77%
1963 3.01% 1.71%
1962 3.03% 1.65%
1961 3.03% 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/lesotho/sierra-leone | CC BY

In 2025, the population of Lesotho grew by 1.11%, while Sierra Leone's population grew by 2.06%.

Live population counters

Lesotho Sierra Leone
Current population
2402837
9090531
Population rank 143/197 100/197
Percent of world population 0.03% 0.11%
One net population change
20.3 minutes
2.96 minutes
One birth every
9.46 minutes
2.02 minutes
One death every
21.5 minutes
7.41 minutes
Daily growth/decline +71 +487
Annual growth/decline +25,902 +177,772
Annual growth/decline rate +1.11% +2.06%
Population growth rate rank 94/197 47/197
One migration net change every
1.69 hours
46.6 minutes
Annual migration change -5,192 -11,309
Net migration rank 117/196 136/196
Foreign-born residents 15,039 49,997
Foreign-born residents rank 173/195 151/195
Foreign-born share of population 0.6% 0.6%
Foreign-born share rank 170/195 174/195

Natural population change vs migration

Lesotho
Natural

Migration
Sierra Leone
Natural

Migration
1x
Year Population change
Lesotho Sierra Leone
Natural Migration Natural Migration
2025 - -5,192 - -11,309
2024 31,050 -5,107 189,234 -11,000
2023 31,115 -5,168 188,788 -4,000
2022 30,803 -6,023 186,625 -4,000
2021 27,806 -3,449 183,326 -1,544
2020 30,721 -3,449 181,015 1,292
2019 32,279 -6,896 181,068 -2,238
2018 33,112 -6,892 178,772 -2,741
2017 33,601 -6,850 173,259 1,234
2016 33,390 -6,766 168,784 4,657
2015 32,087 -7,087 162,275 -356
2014 30,922 -6,877 160,137 485
2013 29,789 -6,659 161,265 2,773
2012 27,592 -6,425 160,915 988
2011 25,647 -6,118 158,858 6,895
2010 21,877 -5,886 155,338 7,983
2009 20,335 -5,599 152,669 18,145
2008 19,349 -5,392 149,855 1,182
2007 17,763 -5,179 145,740 -6,042
2006 15,234 -11,416 144,127 -34,052
2005 15,831 -35,679 137,234 -1,805
2004 17,271 -33,530 132,661 23,897
2003 20,133 -31,723 130,312 69,185
2002 22,274 -29,924 126,429 86,578
2001 23,190 -27,874 116,647 227,791
2000 24,786 -26,220 110,754 83,013
1999 27,393 -24,610 102,295 -84,926
1998 30,889 -23,299 103,906 -76,766
1997 34,637 -22,396 105,433 -48,437
1996 36,228 -17,042 104,140 -52,110
1995 37,370 -14,588 100,885 -112,857
1994 38,629 -13,953 101,486 -77,371
1993 40,505 -13,347 103,317 -95,476
1992 42,579 -12,707 103,251 -129,565
1991 44,026 -12,114 105,477 -238,965
1990 45,060 -11,598 100,778 131,587
1989 46,264 -11,207 98,298 -5,079
1988 47,158 -11,028 96,344 9,470
1987 47,718 -10,946 94,235 9,558
1986 45,232 -7,501 90,902 7,992
1985 44,575 1,222 88,869 -7,873
1984 43,785 1,199 87,072 -8,708
1983 42,899 1,253 84,628 -8,783
1982 41,941 1,281 82,457 -11,379
1981 40,808 1,307 80,111 -12,699
1980 39,617 1,361 77,932 -11,641
1979 38,440 1,285 75,992 -13,095
1978 37,084 1,047 74,130 -13,073
1977 35,654 746 71,663 -12,399
1976 34,117 2,986 69,506 -15,686
1975 32,311 9,723 67,560 -13,058
1974 30,444 9,972 65,357 -11,473
1973 28,859 10,183 62,443 -9,322
1972 27,841 10,386 60,279 -8,267
1971 26,838 10,563 58,484 -8,162
1970 25,935 10,605 56,513 -4,957
1969 25,137 10,465 54,768 -4,485
1968 24,490 10,108 53,126 -3,743
1967 23,911 9,734 51,734 -2,819
1966 23,326 7,248 49,486 -2,911
1965 22,755 2,239 47,223 -1,851
1964 22,116 2,198 45,487 -2,308
1963 21,585 2,220 43,569 -2,480
1962 21,132 2,172 41,603 -2,658
1961 20,581 2,100 40,022 -2,947
1960 19,981 1,989 38,192 -3,528

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

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

Over the last 10 years, 84.6% of the population change in Lesotho is from natural causes (a gain of 315,964 people) and 15.4% is from migration (a loss of 57,687 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, 15,039 residents or 0.6% of the population were not native-born in Lesotho, compared to 49,997 people or 0.6% in Sierra Leone.

Biggest cities by population

Lesotho
City Population
Maseru 344K
Teyateyaneng 75.1K
Mafeteng 57.1K
Butha-Buthe 10K
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/lesotho/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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