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Population in Mauritania compared to Niger: Trends, Charts, Rankings

Updated on by Georank

The latest officially reported population of Mauritania was 5,315,065 in 2025 vs 27,917,831 people in Niger in 2025. In 2026, based on the adjusted UN estimation, the current Mauritania's population is 5,539,189 people compared to 29,294,628 in Niger.

Population statistics:

  • Niger's population is 5.29 times bigger than Mauritania's.
  • Mauritania is ranked the 123rd most populous country in the world, while Niger is the 53rd.
  • The countries together account for 0.42% of the world: 0.07% for Mauritania vs 0.35% for Niger.
  • For the last 10 years, Mauritania has had an average growth rate of +2.98% per year vs +3.45% in Niger.
  • Since 2006, the population of Mauritania has increased from 3.01M people to 5.54M (83.8% growth), while Niger has grown from 14.3M to 29.3M (105.3% growth).

Mauritania vs Niger: population by year and forecast

Mauritania
Factual

Projection
Niger
Factual

Projection
1x
Year Population
Mauritania Niger
2100 17,302,938 92,119,820
2099 17,195,692 91,758,864
2098 17,083,078 91,380,105
2097 16,968,365 90,979,507
2096 16,850,394 90,560,194
2095 16,732,430 90,121,433
2094 16,610,512 89,665,016
2093 16,485,880 89,186,290
2092 16,359,440 88,687,247
2091 16,229,167 88,169,255
2090 16,097,149 87,632,134
2089 15,962,562 87,075,435
2088 15,824,899 86,497,532
2087 15,683,760 85,901,116
2086 15,541,281 85,285,801
2085 15,397,701 84,648,237
2084 15,251,533 83,990,034
2083 15,102,125 83,310,768
2082 14,952,194 82,611,309
2081 14,799,309 81,895,814
2080 14,645,548 81,159,765
2079 14,490,500 80,409,054
2078 14,331,284 79,639,286
2077 14,170,045 78,852,089
2076 14,007,555 78,045,772
2075 13,843,393 77,223,494
2074 13,678,579 76,387,922
2073 13,512,182 75,535,687
2072 13,343,946 74,667,410
2071 13,172,876 73,784,579
2070 13,002,521 72,888,455
2069 12,830,090 71,975,811
2068 12,657,711 71,050,594
2067 12,482,299 70,111,034
2066 12,306,495 69,159,115
2065 12,131,679 68,199,397
2064 11,954,090 67,226,153
2063 11,778,351 66,242,857
2062 11,601,323 65,249,357
2061 11,424,089 64,246,142
2060 11,246,850 63,236,587
2059 11,067,732 62,219,239
2058 10,887,645 61,193,260
2057 10,709,500 60,161,411
2056 10,532,648 59,126,596
2055 10,354,318 58,084,470
2054 10,175,517 57,038,192
2053 9,995,645 55,989,073
2052 9,815,104 54,940,685
2051 9,635,288 53,889,624
2050 9,457,400 52,841,076
2049 9,279,576 51,793,560
2048 9,100,595 50,746,939
2047 8,923,220 49,703,518
2046 8,745,286 48,661,960
2045 8,568,910 47,622,548
2044 8,393,773 46,586,941
2043 8,218,850 45,557,790
2042 8,044,865 44,531,886
2041 7,873,599 43,511,370
2040 7,703,561 42,494,381
2039 7,534,623 41,482,338
2038 7,366,187 40,472,234
2037 7,199,542 39,463,944
2036 7,033,866 38,459,660
2035 6,869,186 37,458,584
2034 6,705,635 36,465,688
2033 6,543,505 35,476,260
2032 6,383,229 34,497,489
2031 6,225,030 33,527,117
2030 6,068,395 32,563,547
2029 5,914,109 31,610,576
2028 5,761,715 30,670,274
2027 5,611,635 29,741,014
2026 5,462,675 28,823,166
2025 5,315,065 27,917,831
2024 5,169,395 27,032,412
2023 5,022,441 26,159,867
2022 4,875,637 25,311,973
2021 4,734,874 24,502,140
2020 4,600,131 23,717,613
2019 4,467,708 22,947,757
2018 4,337,685 22,188,069
2017 4,210,600 21,435,446
2016 4,086,657 20,685,753
2015 3,965,959 19,939,498
2014 3,848,514 19,215,909
2013 3,734,318 18,519,898
2012 3,619,034 17,836,769
2011 3,502,811 17,176,283
2010 3,390,965 16,548,835
2009 3,284,448 15,943,675
2008 3,183,269 15,361,915
2007 3,093,059 14,803,610
2006 3,013,660 14,268,581
2005 2,939,059 13,756,192
2004 2,868,664 13,265,836
2003 2,802,046 12,796,984
2002 2,738,655 12,349,144
2001 2,678,760 11,920,647
2000 2,613,441 11,509,630
1999 2,541,698 11,117,411
1998 2,474,651 10,741,413
1997 2,411,306 10,383,969
1996 2,358,188 10,044,852
1995 2,312,017 9,714,529
1994 2,249,454 9,398,258
1993 2,174,328 9,100,789
1992 2,088,135 8,817,633
1991 2,009,738 8,546,900
1990 1,951,878 8,286,059
1989 1,903,048 8,034,780
1988 1,855,859 7,793,748
1987 1,803,014 7,561,150
1986 1,751,835 7,335,811
1985 1,702,107 7,118,457
1984 1,653,693 6,909,971
1983 1,606,746 6,708,644
1982 1,561,176 6,512,732
1981 1,516,877 6,322,006
1980 1,474,043 6,135,971
1979 1,432,758 5,955,556
1978 1,392,713 5,782,932
1977 1,353,768 5,619,716
1976 1,315,336 5,464,962
1975 1,277,330 5,317,019
1974 1,240,188 5,174,953
1973 1,203,838 5,037,865
1972 1,168,355 4,904,845
1971 1,133,702 4,776,225
1970 1,099,806 4,650,275
1969 1,066,754 4,525,725
1968 1,034,739 4,403,637
1967 1,003,843 4,283,590
1966 974,157 4,165,544
1965 945,838 4,049,695
1964 918,955 3,935,814
1963 893,423 3,823,873
1962 869,184 3,714,520
1961 846,167 3,608,162
1960 824,298 3,505,050

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/mauritania/niger | CC BY

From 2006 to 2016, the population of Mauritania increased by 1,072,997 people (a 35.6% growth), while Niger gained 6,417,172 people (a 45% growth).

For the next 10 years, from 2016 to 2026, Mauritania gained 1,452,532 people (a 35.5% growth), while Niger's population increased by 8,608,875 people (a 41.6% growth).

Mauritania was ranked 132nd most populous country in 2006 and is 123rd in 2026. Niger was ranked 64th in 2006 and ranked 53rd now.

The UN's World Population Prospects forecasts that in 24 years (in 2050) Mauritania's population will grow by 70.7% to 9,457,400 people with a rank change from 123rd to 103rd. The population of Niger will increase by 80.4% to 52,841,076 people and rank change from 53rd to 38th.

Mauritania is projected to reach its peak in 2100 at 17.3M people compared to the peak of 92.1M people in 2100 for Niger.

Population growth rate by year

Mauritania
Factual

Projection
Niger
Factual

Projection
1x
Year Growth rate
Mauritania Niger
2100 0.62% 0.39%
2099 0.66% 0.41%
2098 0.68% 0.44%
2097 0.7% 0.46%
2096 0.7% 0.49%
2095 0.73% 0.51%
2094 0.76% 0.54%
2093 0.77% 0.56%
2092 0.8% 0.59%
2091 0.82% 0.61%
2090 0.84% 0.64%
2089 0.87% 0.67%
2088 0.9% 0.69%
2087 0.92% 0.72%
2086 0.93% 0.75%
2085 0.96% 0.78%
2084 0.99% 0.82%
2083 1% 0.85%
2082 1.03% 0.87%
2081 1.05% 0.91%
2080 1.07% 0.93%
2079 1.11% 0.97%
2078 1.14% 1%
2077 1.16% 1.03%
2076 1.19% 1.06%
2075 1.2% 1.09%
2074 1.23% 1.13%
2073 1.26% 1.16%
2072 1.3% 1.2%
2071 1.31% 1.23%
2070 1.34% 1.27%
2069 1.36% 1.3%
2068 1.41% 1.34%
2067 1.43% 1.38%
2066 1.44% 1.41%
2065 1.49% 1.45%
2064 1.49% 1.48%
2063 1.53% 1.52%
2062 1.55% 1.56%
2061 1.58% 1.6%
2060 1.62% 1.64%
2059 1.65% 1.68%
2058 1.66% 1.72%
2057 1.68% 1.75%
2056 1.72% 1.79%
2055 1.76% 1.83%
2054 1.8% 1.87%
2053 1.84% 1.91%
2052 1.87% 1.95%
2051 1.88% 1.98%
2050 1.92% 2.02%
2049 1.97% 2.06%
2048 1.99% 2.1%
2047 2.03% 2.14%
2046 2.06% 2.18%
2045 2.09% 2.22%
2044 2.13% 2.26%
2043 2.16% 2.3%
2042 2.18% 2.35%
2041 2.21% 2.39%
2040 2.24% 2.44%
2039 2.29% 2.5%
2038 2.31% 2.55%
2037 2.36% 2.61%
2036 2.4% 2.67%
2035 2.44% 2.72%
2034 2.48% 2.79%
2033 2.51% 2.84%
2032 2.54% 2.89%
2031 2.58% 2.96%
2030 2.61% 3.01%
2029 2.64% 3.07%
2028 2.67% 3.12%
2027 2.73% 3.18%
2026 2.78% 3.24%
2025 2.82% 3.28%
2024 2.93% 3.34%
2023 3.01% 3.35%
2022 2.97% 3.31%
2021 2.93% 3.31%
2020 2.96% 3.35%
2019 3% 3.42%
2018 3.02% 3.51%
2017 3.03% 3.62%
2016 3.04% 3.74%
2015 3.05% 3.77%
2014 3.06% 3.76%
2013 3.19% 3.83%
2012 3.32% 3.85%
2011 3.3% 3.79%
2010 3.24% 3.8%
2009 3.18% 3.79%
2008 2.92% 3.77%
2007 2.63% 3.75%
2006 2.54% 3.72%
2005 2.45% 3.7%
2004 2.38% 3.66%
2003 2.31% 3.63%
2002 2.24% 3.59%
2001 2.5% 3.57%
2000 2.82% 3.53%
1999 2.71% 3.5%
1998 2.63% 3.44%
1997 2.25% 3.38%
1996 2% 3.4%
1995 2.78% 3.37%
1994 3.46% 3.27%
1993 4.13% 3.21%
1992 3.9% 3.17%
1991 2.96% 3.15%
1990 2.57% 3.13%
1989 2.54% 3.09%
1988 2.93% 3.08%
1987 2.92% 3.07%
1986 2.92% 3.05%
1985 2.93% 3.02%
1984 2.92% 3%
1983 2.92% 3.01%
1982 2.92% 3.02%
1981 2.91% 3.03%
1980 2.88% 3.03%
1979 2.88% 2.99%
1978 2.88% 2.9%
1977 2.92% 2.83%
1976 2.98% 2.78%
1975 2.99% 2.75%
1974 3.02% 2.72%
1973 3.04% 2.71%
1972 3.06% 2.69%
1971 3.08% 2.71%
1970 3.1% 2.75%
1969 3.09% 2.77%
1968 3.08% 2.8%
1967 3.05% 2.83%
1966 2.99% 2.86%
1965 2.93% 2.89%
1964 2.86% 2.93%
1963 2.79% 2.94%
1962 2.72% 2.95%
1961 2.65% 2.94%

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/mauritania/niger | CC BY

In 2025, the population of Mauritania grew by 2.82%, while Niger's population grew by 3.28%.

Live population counters

Mauritania Niger
Current population
5539189
29294628
Population rank 123/197 53/197
Percent of world population 0.07% 0.35%
One net population change
3.62 minutes
35.7 seconds
One birth every
2.99 minutes
28.2 seconds
One death every
18.8 minutes
2.23 minutes
Daily growth/decline +399 +2,426
Annual growth/decline +145,670 +885,419
Annual growth/decline rate +2.82% +3.28%
Population growth rate rank 18/197 9/197
One migration net change every
1.74 hours
1.14 hours
Annual migration change -5,044 -7,704
Net migration rank 115/196 126/196
Foreign-born residents 195,937 449,236
Foreign-born residents rank 113/195 85/195
Foreign-born share of population 3.8% 1.7%
Foreign-born share rank 107/195 140/195

Natural population change vs migration

Mauritania
Natural

Migration
Niger
Natural

Migration
1x
Year Population change
Mauritania Niger
Natural Migration Natural Migration
2025 - -5,044 - -7,704
2024 147,927 -2,185 883,987 -4,041
2023 145,164 2,999 864,139 995
2022 142,451 2,999 829,651 995
2021 137,557 -1,483 793,428 -4,405
2020 134,899 -1,483 784,437 -4,402
2019 134,460 -3,019 775,474 -15,778
2018 131,584 -2,987 763,536 -3,830
2017 128,562 -3,001 752,384 -6,830
2016 125,342 -3,008 738,999 14,833
2015 122,092 -3,019 721,630 17,051
2014 118,792 -2,980 704,609 3,891
2013 115,558 -2,987 686,070 -2,543
2012 113,489 4,515 664,009 18,714
2011 111,165 3,272 645,175 -6,941
2010 108,121 1,128 624,685 -8,033
2009 105,273 -1,481 602,671 -9,014
2008 102,432 -3,860 579,727 -9,847
2007 98,895 -17,048 556,808 -10,069
2006 94,991 -18,033 533,374 -10,054
2005 90,940 -18,693 511,167 -9,700
2004 87,578 -19,042 488,328 -9,070
2003 83,804 -19,104 467,295 -8,841
2002 80,993 -18,903 446,767 -9,550
2001 78,769 -21,067 428,417 -8,654
2000 75,929 -2,997 410,779 -8,522
1999 73,554 -2,999 394,212 -12,037
1998 72,045 -8,504 377,120 -7,298
1997 71,327 -8,187 358,745 -13,680
1996 71,939 -28,840 341,223 -8,057
1995 72,244 -22,997 323,630 3,843
1994 70,570 5,304 306,026 -959
1993 68,167 6,217 292,135 -2,269
1992 63,501 34,505 278,690 -2,258
1991 61,782 -2,997 266,527 -1,500
1990 59,934 -3,000 256,594 73
1989 58,666 -17,941 245,278 613
1988 56,654 -2,997 237,296 -1,139
1987 55,037 -2,998 231,371 -2,338
1986 53,313 -2,998 224,365 -2,728
1985 52,125 -2,998 219,206 -6,126
1984 50,705 -2,998 213,111 -9,208
1983 49,187 -2,998 207,962 -9,209
1982 47,947 -2,998 202,012 -8,935
1981 46,641 -2,998 195,938 -7,559
1980 45,026 -2,997 189,251 -5,564
1979 43,537 -2,997 180,632 -3,495
1978 42,539 -2,998 171,614 -3,494
1977 41,352 -2,999 161,792 -3,476
1976 40,149 -1,645 154,489 -3,308
1975 38,975 -1,472 147,962 -3,254
1974 38,106 -1,321 142,606 -3,179
1973 37,122 -1,201 137,695 -2,942
1972 36,184 -1,139 133,813 -2,525
1971 35,279 -1,014 128,223 -2,277
1970 34,382 -855 128,184 -2,225
1969 33,252 -688 125,389 -2,245
1968 32,029 -565 123,301 -2,277
1967 30,853 -514 121,358 -2,289
1966 29,502 -466 119,314 -2,289
1965 28,028 -434 116,963 -2,289
1964 26,565 -390 115,386 -2,289
1963 25,250 -362 113,072 -2,289
1962 23,927 -342 110,280 -2,369
1961 22,781 -332 107,693 -2,893
1960 21,604 -318 105,081 -3,641

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

GeoRank.org/population/mauritania/niger | CC BY

Over the last 10 years, 99% of the population change in Mauritania is from natural causes (a gain of 1,350,038 people) and 1.04% is from migration (a loss of 14,187 people). In Niger 99.9% is from natural causes (a gain of 7,907,665 people) and 0.07% is from migration (a loss of 5,412 people).

As of 2024, 195,937 residents or 3.8% of the population were not native-born in Mauritania, compared to 449,236 people or 1.7% in Niger.

Biggest cities by population

Mauritania
City Population
Nouakchott 1.45M
Rosso 61.2K
Niger
City Population
Niamey 1.5M
Maradi 267K
Zinder 236K

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/mauritania/niger | 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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