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

Updated on by Georank

The latest officially reported population of Sierra Leone was 8,819,794 in 2025 vs 23,331,886 people in Taiwan in 2025. In 2026, based on the adjusted UN estimation, the current Sierra Leone's population is 9,090,531 people compared to 23,229,461 in Taiwan.

Population statistics:

  • Taiwan's population is 2.56 times bigger than Sierra Leone's.
  • Sierra Leone is ranked the 100th most populous country in the world, while Taiwan is the 60th.
  • The countries together account for 0.39% of the world: 0.11% for Sierra Leone vs 0.28% for Taiwan.
  • For the last 10 years, Sierra Leone has had an average growth rate of +2.29% per year vs -0.03% in Taiwan.
  • Since 2006, the population of Sierra Leone has increased from 5.62M people to 9.09M (61.6% growth), while Taiwan has grown from 22.8M to 23.2M (1.78% growth).

Sierra Leone vs Taiwan: population by year and forecast

Sierra Leone
Factual

Projection
Taiwan
Factual

Projection
1x
Year Population
Sierra Leone Taiwan
2100 16,107,087 10,150,338
2099 16,121,940 10,273,881
2098 16,135,035 10,399,680
2097 16,149,905 10,527,804
2096 16,160,672 10,657,536
2095 16,169,304 10,789,978
2094 16,168,902 10,925,075
2093 16,173,609 11,062,491
2092 16,170,778 11,202,670
2091 16,163,901 11,346,131
2090 16,154,165 11,494,369
2089 16,142,526 11,644,743
2088 16,128,775 11,799,177
2087 16,112,585 11,956,109
2086 16,085,549 12,116,149
2085 16,064,212 12,281,248
2084 16,040,563 12,451,872
2083 16,006,923 12,625,681
2082 15,970,872 12,803,442
2081 15,930,880 12,986,931
2080 15,892,665 13,174,137
2079 15,850,728 13,366,920
2078 15,801,450 13,564,788
2077 15,750,408 13,765,770
2076 15,695,310 13,969,802
2075 15,635,345 14,178,904
2074 15,580,279 14,391,331
2073 15,512,655 14,606,033
2072 15,442,481 14,824,987
2071 15,370,747 15,045,310
2070 15,293,426 15,266,143
2069 15,212,664 15,488,280
2068 15,124,069 15,714,125
2067 15,028,190 15,940,945
2066 14,931,295 16,167,553
2065 14,833,794 16,396,032
2064 14,736,872 16,625,600
2063 14,638,180 16,854,355
2062 14,525,736 17,084,600
2061 14,420,068 17,314,450
2060 14,307,451 17,541,998
2059 14,194,972 17,767,014
2058 14,077,124 17,988,239
2057 13,957,197 18,208,151
2056 13,832,494 18,423,453
2055 13,702,508 18,639,554
2054 13,576,231 18,853,384
2053 13,440,929 19,063,428
2052 13,299,910 19,270,076
2051 13,152,910 19,474,323
2050 13,006,688 19,677,203
2049 12,863,637 19,878,438
2048 12,712,671 20,073,645
2047 12,566,944 20,267,326
2046 12,411,042 20,454,154
2045 12,254,651 20,640,565
2044 12,088,895 20,819,477
2043 11,928,393 20,995,111
2042 11,767,372 21,166,213
2041 11,599,942 21,331,710
2040 11,428,331 21,491,361
2039 11,259,845 21,645,911
2038 11,097,180 21,794,529
2037 10,928,754 21,939,617
2036 10,757,928 22,077,701
2035 10,582,918 22,211,115
2034 10,411,088 22,340,809
2033 10,238,503 22,463,465
2032 10,059,929 22,582,449
2031 9,881,109 22,698,460
2030 9,705,485 22,809,605
2029 9,529,493 22,916,803
2028 9,358,412 23,022,058
2027 9,177,288 23,127,410
2026 8,998,902 23,229,461
2025 8,819,794 23,331,886
2024 8,642,022 23,410,331
2023 8,460,512 23,342,541
2022 8,276,807 23,319,977
2021 8,094,602 23,468,275
2020 7,912,558 23,582,179
2019 7,731,991 23,596,027
2018 7,554,563 23,580,080
2017 7,379,299 23,555,522
2016 7,205,328 23,515,945
2015 7,037,655 23,462,914
2014 6,876,385 23,403,635
2013 6,714,051 23,344,670
2012 6,551,080 23,270,367
2011 6,387,251 23,193,518
2010 6,222,714 23,140,948
2009 6,055,646 23,078,402
2008 5,894,722 22,997,696
2007 5,749,352 22,917,444
2006 5,624,466 22,823,455
2005 5,501,712 22,729,753
2004 5,355,717 22,646,836
2003 5,177,687 22,562,663
2002 4,971,435 22,463,172
2001 4,692,716 22,341,120
2000 4,423,611 22,184,530
1999 4,318,043 22,010,489
1998 4,295,785 21,835,703
1997 4,253,716 21,634,124
1996 4,199,210 21,441,432
1995 4,179,179 21,267,653
1994 4,173,105 21,086,645
1993 4,157,130 20,899,019
1992 4,166,366 20,704,227
1991 4,246,267 20,503,568
1990 4,196,828 20,278,946
1989 4,034,037 20,055,492
1988 3,934,517 19,839,704
1987 3,829,718 19,617,046
1986 3,728,380 19,411,454
1985 3,638,438 19,191,510
1984 3,558,758 18,929,866
1983 3,481,646 18,653,146
1982 3,408,183 18,354,855
1981 3,338,940 18,029,982
1980 3,272,089 17,704,538
1979 3,207,499 17,372,779
1978 3,145,517 17,042,272
1977 3,085,354 16,730,895
1976 3,028,820 16,401,413
1975 2,974,657 16,075,128
1974 2,920,459 15,784,817
1973 2,866,955 15,505,121
1972 2,814,388 15,220,495
1971 2,763,222 14,913,564
1970 2,712,286 14,582,944
1969 2,661,365 14,068,984
1968 2,611,532 13,548,537
1967 2,562,384 13,210,344
1966 2,514,638 12,874,153
1965 2,468,666 12,511,863
1964 2,424,390 12,137,143
1963 2,382,258 11,762,101
1962 2,342,242 11,392,513
1961 2,304,227 11,030,385
1960 2,268,356 10,667,705

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

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

From 2006 to 2016, the population of Sierra Leone increased by 1,580,862 people (a 28.1% growth), while Taiwan gained 692,490 people (a 3.03% growth).

For the next 10 years, from 2016 to 2026, Sierra Leone gained 1,885,203 people (a 26.2% growth), while Taiwan's population decreased by 286,484 people (a 1.22% decline).

Sierra Leone was ranked 105th most populous country in 2006 and is 100th in 2026. Taiwan was ranked 49th in 2006 and ranked 60th now.

The UN's World Population Prospects forecasts that in 24 years (in 2050) Sierra Leone's population will grow by 43.1% to 13,006,688 people with a rank change from 100th to 91st. The population of Taiwan will decrease by 15.3% to 19,677,203 people and rank change from 60th to 76th.

Sierra Leone is projected to reach its peak in 2093 at 16.2M people, while Taiwan's population already peaked in 2019 at 23.6M people and is projected to decrease to 10.2M people by 2100.

Population growth rate by year

Sierra Leone
Factual

Projection
Taiwan
Factual

Projection
1x
Year Growth rate
Sierra Leone Taiwan
2100 -0.09% -1.2%
2099 -0.08% -1.21%
2098 -0.09% -1.22%
2097 -0.07% -1.22%
2096 -0.05% -1.23%
2095 0.002% -1.24%
2094 -0.03% -1.24%
2093 0.02% -1.25%
2092 0.04% -1.26%
2091 0.06% -1.29%
2090 0.07% -1.29%
2089 0.09% -1.31%
2088 0.1% -1.31%
2087 0.17% -1.32%
2086 0.13% -1.34%
2085 0.15% -1.37%
2084 0.21% -1.38%
2083 0.23% -1.39%
2082 0.25% -1.41%
2081 0.24% -1.42%
2080 0.26% -1.44%
2079 0.31% -1.46%
2078 0.32% -1.46%
2077 0.35% -1.46%
2076 0.38% -1.47%
2075 0.35% -1.48%
2074 0.44% -1.47%
2073 0.45% -1.48%
2072 0.47% -1.46%
2071 0.51% -1.45%
2070 0.53% -1.43%
2069 0.59% -1.44%
2068 0.64% -1.42%
2067 0.65% -1.4%
2066 0.66% -1.39%
2065 0.66% -1.38%
2064 0.67% -1.36%
2063 0.77% -1.35%
2062 0.73% -1.33%
2061 0.79% -1.3%
2060 0.79% -1.27%
2059 0.84% -1.23%
2058 0.86% -1.21%
2057 0.9% -1.17%
2056 0.95% -1.16%
2055 0.93% -1.13%
2054 1.01% -1.1%
2053 1.06% -1.07%
2052 1.12% -1.05%
2051 1.12% -1.03%
2050 1.11% -1.01%
2049 1.19% -0.97%
2048 1.16% -0.96%
2047 1.26% -0.91%
2046 1.28% -0.9%
2045 1.37% -0.86%
2044 1.35% -0.84%
2043 1.37% -0.81%
2042 1.44% -0.78%
2041 1.5% -0.74%
2040 1.5% -0.71%
2039 1.47% -0.68%
2038 1.54% -0.66%
2037 1.59% -0.63%
2036 1.65% -0.6%
2035 1.65% -0.58%
2034 1.69% -0.55%
2033 1.78% -0.53%
2032 1.81% -0.51%
2031 1.81% -0.49%
2030 1.85% -0.47%
2029 1.83% -0.46%
2028 1.97% -0.46%
2027 1.98% -0.44%
2026 2.03% -0.44%
2025 2.06% -0.34%
2024 2.15% 0.29%
2023 2.22% 0.1%
2022 2.25% -0.63%
2021 2.3% -0.48%
2020 2.34% -0.06%
2019 2.35% 0.07%
2018 2.38% 0.1%
2017 2.41% 0.17%
2016 2.38% 0.23%
2015 2.35% 0.25%
2014 2.42% 0.25%
2013 2.49% 0.32%
2012 2.56% 0.33%
2011 2.64% 0.23%
2010 2.76% 0.27%
2009 2.73% 0.35%
2008 2.53% 0.35%
2007 2.22% 0.41%
2006 2.23% 0.41%
2005 2.73% 0.37%
2004 3.44% 0.37%
2003 4.15% 0.44%
2002 5.94% 0.55%
2001 6.08% 0.71%
2000 2.44% 0.79%
1999 0.52% 0.8%
1998 0.99% 0.93%
1997 1.3% 0.9%
1996 0.48% 0.82%
1995 0.15% 0.86%
1994 0.38% 0.9%
1993 -0.22% 0.94%
1992 -1.88% 0.98%
1991 1.18% 1.11%
1990 4.04% 1.11%
1989 2.53% 1.09%
1988 2.74% 1.14%
1987 2.72% 1.06%
1986 2.47% 1.15%
1985 2.24% 1.38%
1984 2.21% 1.48%
1983 2.16% 1.63%
1982 2.07% 1.8%
1981 2.04% 1.84%
1980 2.01% 1.91%
1979 1.97% 1.94%
1978 1.95% 1.86%
1977 1.87% 2.01%
1976 1.82% 2.03%
1975 1.86% 1.84%
1974 1.87% 1.8%
1973 1.87% 1.87%
1972 1.85% 2.06%
1971 1.88% 2.27%
1970 1.91% 3.65%
1969 1.91% 3.84%
1968 1.92% 2.56%
1967 1.9% 2.61%
1966 1.86% 2.9%
1965 1.83% 3.09%
1964 1.77% 3.19%
1963 1.71% 3.24%
1962 1.65% 3.28%
1961 1.58% 3.4%
1960 - 3.69%

Data sources: United Nations | World Population Prospects (2026–2100, retrieved 2026-07-08); National Statistics, Taiwan (1960–2025, retrieved 2026-07-08); World Bank | Health (1961–2025, retrieved 2026-07-08).

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

In 2025, the population of Sierra Leone grew by 2.06%, while Taiwan's population declined by 0.34%.

Live population counters

Sierra Leone Taiwan
Current population
9090531
23229461
Population rank 100/197 60/197
Percent of world population 0.11% 0.28%
One net population change
2.96 minutes
6.72 minutes
One birth every
2.02 minutes
3.9 minutes
One death every
7.41 minutes
2.6 minutes
Daily growth/decline +487 -215
Annual growth/decline +177,772 -78,445
Annual growth/decline rate +2.06% -0.34%
Population growth rate rank 47/197 178/197
One migration net change every
46.6 minutes
11.2 minutes
Annual migration change -11,309 +47,029
Net migration rank 136/196 23/196
Foreign-born residents 49,997 n/a
Foreign-born residents rank 151/195
Foreign-born share of population 0.6% n/a
Foreign-born share rank 174/195

Natural population change vs migration

Sierra Leone
Natural

Migration
Taiwan
Natural

Migration
1x
Year Population change
Sierra Leone Taiwan
Natural Migration Natural Migration
2025 - -11,309 - -
2024 189,234 -11,000 -67,188 47,029
2023 188,788 -4,000 -69,794 225,599
2022 186,625 -4,000 -68,327 -42,430
2021 183,326 -1,544 -30,039 -156,010
2020 181,015 1,292 -7,782 -33,978
2019 181,068 -2,238 1,416 12,718
2018 178,772 -2,741 8,725 8,888
2017 173,259 1,234 22,613 8,809
2016 168,784 4,657 35,980 11,707
2015 162,275 -356 49,741 8,581
2014 160,137 485 - -
2013 161,265 2,773 - -
2012 160,915 988 - -
2011 158,858 6,895 43,836 19,077
2010 155,338 7,983 - -
2009 152,669 18,145 - -
2008 149,855 1,182 - -
2007 145,740 -6,042 - -
2006 144,127 -34,052 - -
2005 137,234 -1,805 - -
2004 132,661 23,897 - -
2003 130,312 69,185 - -
2002 126,429 86,578 - -
2001 116,647 227,791 132,707 -3,811
2000 110,754 83,013 - -
1999 102,295 -84,926 - -
1998 103,906 -76,766 - -
1997 105,433 -48,437 - -
1996 104,140 -52,110 - -
1995 100,885 -112,857 - -
1994 101,486 -77,371 - -
1993 103,317 -95,476 - -
1992 103,251 -129,565 - -
1991 105,477 -238,965 215,698 -12,128
1990 100,778 131,587 - -
1989 98,298 -5,079 - -
1988 96,344 9,470 - -
1987 94,235 9,558 - -
1986 90,902 7,992 - -
1985 88,869 -7,873 - -
1984 87,072 -8,708 - -
1983 84,628 -8,783 - -
1982 82,457 -11,379 - -
1981 80,111 -12,699 326,883 4,508
1980 77,932 -11,641 - -
1979 75,992 -13,095 - -
1978 74,130 -13,073 - -
1977 71,663 -12,399 - -
1976 69,506 -15,686 - -
1975 67,560 -13,058 - -
1974 65,357 -11,473 - -
1973 62,443 -9,322 - -
1972 60,279 -8,267 - -
1971 58,484 -8,162 - -
1970 56,513 -4,957 - -
1969 54,768 -4,485 - -
1968 53,126 -3,743 - -
1967 51,734 -2,819 - -
1966 49,486 -2,911 346,958 18,774
1965 47,223 -1,851 - -
1964 45,487 -2,308 - -
1963 43,569 -2,480 - -
1962 41,603 -2,658 - -
1961 40,022 -2,947 - -
1960 38,192 -3,528 - -

Data sources: World Bank | Health (1960–2025, retrieved 2026-07-08); National Statistics, Taiwan (1966–2024, retrieved 2026-07-08).

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

Over the last 10 years, 99% of the population change in Sierra Leone is from natural causes (a gain of 1,793,146 people) and 1.03% is from migration (a loss of 18,696 people). In Taiwan 57.8% is from natural causes (a loss of 124,655 people) and 42.2% is from migration (a gain of 90,913 people).

Biggest cities by population

Sierra Leone
City Population
Freetown 951K
Bo 234K
Kenema 188K
Taiwan
City Population
New Taipei 4.04M
Taichung 2.87M
Kaohsiung 2.71M
Taipei 2.43M
Taoyuan 2.36M
Tainan 1.85M
Hsinchu 456K
Keelung 359K
Chiayi 262K
Zhubei 221K

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); National Statistics, Taiwan (1960–2025, retrieved 2026-07-08); Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-07-08).

GeoRank.org/population/sierra-leone/taiwan | 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. National Statistics, Taiwan (1960–2026, retrieved 2026-07-08)
  4. U.S. Census Bureau (1960–2025, retrieved 2026-07-08)
  5. Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-07-08)
  6. Wikidata (2026, retrieved 2026-07-08)

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