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

Updated on by Georank

The latest officially reported population of Niger was 27,917,831 in 2025 vs 8,819,794 people in Sierra Leone in 2025. In 2026, based on the adjusted UN estimation, the current Niger's population is 29,294,628 people compared to 9,090,531 in Sierra Leone.

Population statistics:

  • Niger's population is 3.22 times bigger than Sierra Leone's.
  • Niger is ranked the 53rd most populous country in the world, while Sierra Leone is the 100th.
  • The countries together account for 0.46% of the world: 0.35% for Niger vs 0.11% for Sierra Leone.
  • For the last 10 years, Niger has had an average growth rate of +3.45% per year vs +2.29% in Sierra Leone.
  • Since 2006, the population of Niger has increased from 14.3M people to 29.3M (105.3% growth), while Sierra Leone has grown from 5.62M to 9.09M (61.6% growth).

Niger vs Sierra Leone: population by year and forecast

Niger
Factual

Projection
Sierra Leone
Factual

Projection
1x
Year Population
Niger Sierra Leone
2100 92,119,820 16,107,087
2099 91,758,864 16,121,940
2098 91,380,105 16,135,035
2097 90,979,507 16,149,905
2096 90,560,194 16,160,672
2095 90,121,433 16,169,304
2094 89,665,016 16,168,902
2093 89,186,290 16,173,609
2092 88,687,247 16,170,778
2091 88,169,255 16,163,901
2090 87,632,134 16,154,165
2089 87,075,435 16,142,526
2088 86,497,532 16,128,775
2087 85,901,116 16,112,585
2086 85,285,801 16,085,549
2085 84,648,237 16,064,212
2084 83,990,034 16,040,563
2083 83,310,768 16,006,923
2082 82,611,309 15,970,872
2081 81,895,814 15,930,880
2080 81,159,765 15,892,665
2079 80,409,054 15,850,728
2078 79,639,286 15,801,450
2077 78,852,089 15,750,408
2076 78,045,772 15,695,310
2075 77,223,494 15,635,345
2074 76,387,922 15,580,279
2073 75,535,687 15,512,655
2072 74,667,410 15,442,481
2071 73,784,579 15,370,747
2070 72,888,455 15,293,426
2069 71,975,811 15,212,664
2068 71,050,594 15,124,069
2067 70,111,034 15,028,190
2066 69,159,115 14,931,295
2065 68,199,397 14,833,794
2064 67,226,153 14,736,872
2063 66,242,857 14,638,180
2062 65,249,357 14,525,736
2061 64,246,142 14,420,068
2060 63,236,587 14,307,451
2059 62,219,239 14,194,972
2058 61,193,260 14,077,124
2057 60,161,411 13,957,197
2056 59,126,596 13,832,494
2055 58,084,470 13,702,508
2054 57,038,192 13,576,231
2053 55,989,073 13,440,929
2052 54,940,685 13,299,910
2051 53,889,624 13,152,910
2050 52,841,076 13,006,688
2049 51,793,560 12,863,637
2048 50,746,939 12,712,671
2047 49,703,518 12,566,944
2046 48,661,960 12,411,042
2045 47,622,548 12,254,651
2044 46,586,941 12,088,895
2043 45,557,790 11,928,393
2042 44,531,886 11,767,372
2041 43,511,370 11,599,942
2040 42,494,381 11,428,331
2039 41,482,338 11,259,845
2038 40,472,234 11,097,180
2037 39,463,944 10,928,754
2036 38,459,660 10,757,928
2035 37,458,584 10,582,918
2034 36,465,688 10,411,088
2033 35,476,260 10,238,503
2032 34,497,489 10,059,929
2031 33,527,117 9,881,109
2030 32,563,547 9,705,485
2029 31,610,576 9,529,493
2028 30,670,274 9,358,412
2027 29,741,014 9,177,288
2026 28,823,166 8,998,902
2025 27,917,831 8,819,794
2024 27,032,412 8,642,022
2023 26,159,867 8,460,512
2022 25,311,973 8,276,807
2021 24,502,140 8,094,602
2020 23,717,613 7,912,558
2019 22,947,757 7,731,991
2018 22,188,069 7,554,563
2017 21,435,446 7,379,299
2016 20,685,753 7,205,328
2015 19,939,498 7,037,655
2014 19,215,909 6,876,385
2013 18,519,898 6,714,051
2012 17,836,769 6,551,080
2011 17,176,283 6,387,251
2010 16,548,835 6,222,714
2009 15,943,675 6,055,646
2008 15,361,915 5,894,722
2007 14,803,610 5,749,352
2006 14,268,581 5,624,466
2005 13,756,192 5,501,712
2004 13,265,836 5,355,717
2003 12,796,984 5,177,687
2002 12,349,144 4,971,435
2001 11,920,647 4,692,716
2000 11,509,630 4,423,611
1999 11,117,411 4,318,043
1998 10,741,413 4,295,785
1997 10,383,969 4,253,716
1996 10,044,852 4,199,210
1995 9,714,529 4,179,179
1994 9,398,258 4,173,105
1993 9,100,789 4,157,130
1992 8,817,633 4,166,366
1991 8,546,900 4,246,267
1990 8,286,059 4,196,828
1989 8,034,780 4,034,037
1988 7,793,748 3,934,517
1987 7,561,150 3,829,718
1986 7,335,811 3,728,380
1985 7,118,457 3,638,438
1984 6,909,971 3,558,758
1983 6,708,644 3,481,646
1982 6,512,732 3,408,183
1981 6,322,006 3,338,940
1980 6,135,971 3,272,089
1979 5,955,556 3,207,499
1978 5,782,932 3,145,517
1977 5,619,716 3,085,354
1976 5,464,962 3,028,820
1975 5,317,019 2,974,657
1974 5,174,953 2,920,459
1973 5,037,865 2,866,955
1972 4,904,845 2,814,388
1971 4,776,225 2,763,222
1970 4,650,275 2,712,286
1969 4,525,725 2,661,365
1968 4,403,637 2,611,532
1967 4,283,590 2,562,384
1966 4,165,544 2,514,638
1965 4,049,695 2,468,666
1964 3,935,814 2,424,390
1963 3,823,873 2,382,258
1962 3,714,520 2,342,242
1961 3,608,162 2,304,227
1960 3,505,050 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/niger/sierra-leone | CC BY

From 2006 to 2016, the population of Niger increased by 6,417,172 people (a 45% growth), while Sierra Leone gained 1,580,862 people (a 28.1% growth).

For the next 10 years, from 2016 to 2026, Niger gained 8,608,875 people (a 41.6% growth), while Sierra Leone's population increased by 1,885,203 people (a 26.2% growth).

Niger was ranked 64th most populous country in 2006 and is 53rd 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) Niger's population will grow by 80.4% to 52,841,076 people with a rank change from 53rd to 38th. The population of Sierra Leone will increase by 43.1% to 13,006,688 people and rank change from 100th to 91st.

Niger is projected to reach its peak in 2100 at 92.1M people compared to the peak of 16.2M people in 2093 for Sierra Leone.

Population growth rate by year

Niger
Factual

Projection
Sierra Leone
Factual

Projection
1x
Year Growth rate
Niger Sierra Leone
2100 0.39% -0.09%
2099 0.41% -0.08%
2098 0.44% -0.09%
2097 0.46% -0.07%
2096 0.49% -0.05%
2095 0.51% 0.002%
2094 0.54% -0.03%
2093 0.56% 0.02%
2092 0.59% 0.04%
2091 0.61% 0.06%
2090 0.64% 0.07%
2089 0.67% 0.09%
2088 0.69% 0.1%
2087 0.72% 0.17%
2086 0.75% 0.13%
2085 0.78% 0.15%
2084 0.82% 0.21%
2083 0.85% 0.23%
2082 0.87% 0.25%
2081 0.91% 0.24%
2080 0.93% 0.26%
2079 0.97% 0.31%
2078 1% 0.32%
2077 1.03% 0.35%
2076 1.06% 0.38%
2075 1.09% 0.35%
2074 1.13% 0.44%
2073 1.16% 0.45%
2072 1.2% 0.47%
2071 1.23% 0.51%
2070 1.27% 0.53%
2069 1.3% 0.59%
2068 1.34% 0.64%
2067 1.38% 0.65%
2066 1.41% 0.66%
2065 1.45% 0.66%
2064 1.48% 0.67%
2063 1.52% 0.77%
2062 1.56% 0.73%
2061 1.6% 0.79%
2060 1.64% 0.79%
2059 1.68% 0.84%
2058 1.72% 0.86%
2057 1.75% 0.9%
2056 1.79% 0.95%
2055 1.83% 0.93%
2054 1.87% 1.01%
2053 1.91% 1.06%
2052 1.95% 1.12%
2051 1.98% 1.12%
2050 2.02% 1.11%
2049 2.06% 1.19%
2048 2.1% 1.16%
2047 2.14% 1.26%
2046 2.18% 1.28%
2045 2.22% 1.37%
2044 2.26% 1.35%
2043 2.3% 1.37%
2042 2.35% 1.44%
2041 2.39% 1.5%
2040 2.44% 1.5%
2039 2.5% 1.47%
2038 2.55% 1.54%
2037 2.61% 1.59%
2036 2.67% 1.65%
2035 2.72% 1.65%
2034 2.79% 1.69%
2033 2.84% 1.78%
2032 2.89% 1.81%
2031 2.96% 1.81%
2030 3.01% 1.85%
2029 3.07% 1.83%
2028 3.12% 1.97%
2027 3.18% 1.98%
2026 3.24% 2.03%
2025 3.28% 2.06%
2024 3.34% 2.15%
2023 3.35% 2.22%
2022 3.31% 2.25%
2021 3.31% 2.3%
2020 3.35% 2.34%
2019 3.42% 2.35%
2018 3.51% 2.38%
2017 3.62% 2.41%
2016 3.74% 2.38%
2015 3.77% 2.35%
2014 3.76% 2.42%
2013 3.83% 2.49%
2012 3.85% 2.56%
2011 3.79% 2.64%
2010 3.8% 2.76%
2009 3.79% 2.73%
2008 3.77% 2.53%
2007 3.75% 2.22%
2006 3.72% 2.23%
2005 3.7% 2.73%
2004 3.66% 3.44%
2003 3.63% 4.15%
2002 3.59% 5.94%
2001 3.57% 6.08%
2000 3.53% 2.44%
1999 3.5% 0.52%
1998 3.44% 0.99%
1997 3.38% 1.3%
1996 3.4% 0.48%
1995 3.37% 0.15%
1994 3.27% 0.38%
1993 3.21% -0.22%
1992 3.17% -1.88%
1991 3.15% 1.18%
1990 3.13% 4.04%
1989 3.09% 2.53%
1988 3.08% 2.74%
1987 3.07% 2.72%
1986 3.05% 2.47%
1985 3.02% 2.24%
1984 3% 2.21%
1983 3.01% 2.16%
1982 3.02% 2.07%
1981 3.03% 2.04%
1980 3.03% 2.01%
1979 2.99% 1.97%
1978 2.9% 1.95%
1977 2.83% 1.87%
1976 2.78% 1.82%
1975 2.75% 1.86%
1974 2.72% 1.87%
1973 2.71% 1.87%
1972 2.69% 1.85%
1971 2.71% 1.88%
1970 2.75% 1.91%
1969 2.77% 1.91%
1968 2.8% 1.92%
1967 2.83% 1.9%
1966 2.86% 1.86%
1965 2.89% 1.83%
1964 2.93% 1.77%
1963 2.94% 1.71%
1962 2.95% 1.65%
1961 2.94% 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/niger/sierra-leone | CC BY

In 2025, the population of Niger grew by 3.28%, while Sierra Leone's population grew by 2.06%.

Live population counters

Niger Sierra Leone
Current population
29294628
9090531
Population rank 53/197 100/197
Percent of world population 0.35% 0.11%
One net population change
35.7 seconds
2.96 minutes
One birth every
28.2 seconds
2.02 minutes
One death every
2.23 minutes
7.41 minutes
Daily growth/decline +2,426 +487
Annual growth/decline +885,419 +177,772
Annual growth/decline rate +3.28% +2.06%
Population growth rate rank 9/197 47/197
One migration net change every
1.14 hours
46.6 minutes
Annual migration change -7,704 -11,309
Net migration rank 126/196 136/196
Foreign-born residents 449,236 49,997
Foreign-born residents rank 85/195 151/195
Foreign-born share of population 1.7% 0.6%
Foreign-born share rank 140/195 174/195

Natural population change vs migration

Niger
Natural

Migration
Sierra Leone
Natural

Migration
1x
Year Population change
Niger Sierra Leone
Natural Migration Natural Migration
2025 - -7,704 - -11,309
2024 883,987 -4,041 189,234 -11,000
2023 864,139 995 188,788 -4,000
2022 829,651 995 186,625 -4,000
2021 793,428 -4,405 183,326 -1,544
2020 784,437 -4,402 181,015 1,292
2019 775,474 -15,778 181,068 -2,238
2018 763,536 -3,830 178,772 -2,741
2017 752,384 -6,830 173,259 1,234
2016 738,999 14,833 168,784 4,657
2015 721,630 17,051 162,275 -356
2014 704,609 3,891 160,137 485
2013 686,070 -2,543 161,265 2,773
2012 664,009 18,714 160,915 988
2011 645,175 -6,941 158,858 6,895
2010 624,685 -8,033 155,338 7,983
2009 602,671 -9,014 152,669 18,145
2008 579,727 -9,847 149,855 1,182
2007 556,808 -10,069 145,740 -6,042
2006 533,374 -10,054 144,127 -34,052
2005 511,167 -9,700 137,234 -1,805
2004 488,328 -9,070 132,661 23,897
2003 467,295 -8,841 130,312 69,185
2002 446,767 -9,550 126,429 86,578
2001 428,417 -8,654 116,647 227,791
2000 410,779 -8,522 110,754 83,013
1999 394,212 -12,037 102,295 -84,926
1998 377,120 -7,298 103,906 -76,766
1997 358,745 -13,680 105,433 -48,437
1996 341,223 -8,057 104,140 -52,110
1995 323,630 3,843 100,885 -112,857
1994 306,026 -959 101,486 -77,371
1993 292,135 -2,269 103,317 -95,476
1992 278,690 -2,258 103,251 -129,565
1991 266,527 -1,500 105,477 -238,965
1990 256,594 73 100,778 131,587
1989 245,278 613 98,298 -5,079
1988 237,296 -1,139 96,344 9,470
1987 231,371 -2,338 94,235 9,558
1986 224,365 -2,728 90,902 7,992
1985 219,206 -6,126 88,869 -7,873
1984 213,111 -9,208 87,072 -8,708
1983 207,962 -9,209 84,628 -8,783
1982 202,012 -8,935 82,457 -11,379
1981 195,938 -7,559 80,111 -12,699
1980 189,251 -5,564 77,932 -11,641
1979 180,632 -3,495 75,992 -13,095
1978 171,614 -3,494 74,130 -13,073
1977 161,792 -3,476 71,663 -12,399
1976 154,489 -3,308 69,506 -15,686
1975 147,962 -3,254 67,560 -13,058
1974 142,606 -3,179 65,357 -11,473
1973 137,695 -2,942 62,443 -9,322
1972 133,813 -2,525 60,279 -8,267
1971 128,223 -2,277 58,484 -8,162
1970 128,184 -2,225 56,513 -4,957
1969 125,389 -2,245 54,768 -4,485
1968 123,301 -2,277 53,126 -3,743
1967 121,358 -2,289 51,734 -2,819
1966 119,314 -2,289 49,486 -2,911
1965 116,963 -2,289 47,223 -1,851
1964 115,386 -2,289 45,487 -2,308
1963 113,072 -2,289 43,569 -2,480
1962 110,280 -2,369 41,603 -2,658
1961 107,693 -2,893 40,022 -2,947
1960 105,081 -3,641 38,192 -3,528

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

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

Over the last 10 years, 99.9% of the population change in Niger is from natural causes (a gain of 7,907,665 people) and 0.07% is from migration (a loss of 5,412 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, 449,236 residents or 1.7% of the population were not native-born in Niger, compared to 49,997 people or 0.6% in Sierra Leone.

Biggest cities by population

Niger
City Population
Niamey 1.5M
Maradi 267K
Zinder 236K
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/niger/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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