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

Updated on by Georank

The latest officially reported population of Mauritania was 5,315,065 in 2025 vs 3,568,978 people in Mongolia in 2025. In 2026, based on the adjusted UN estimation, the current Mauritania's population is 5,539,189 people compared to 3,630,744 in Mongolia.

Population statistics:

  • Mauritania's population is 1.53 times bigger than Mongolia's.
  • Mauritania is ranked the 123rd most populous country in the world, while Mongolia is the 132nd.
  • The countries together account for 0.11% of the world: 0.07% for Mauritania vs 0.04% for Mongolia.
  • For the last 10 years, Mauritania has had an average growth rate of +2.98% per year vs +1.71% in Mongolia.
  • Since 2006, the population of Mauritania has increased from 3.01M people to 5.54M (83.8% growth), while Mongolia has grown from 2.57M to 3.63M (41.4% growth).

Mauritania vs Mongolia: population by year and forecast

Mauritania
Factual

Projection
Mongolia
Factual

Projection
1x
Year Population
Mauritania Mongolia
2100 17,302,938 5,630,532
2099 17,195,692 5,624,298
2098 17,083,078 5,616,442
2097 16,968,365 5,607,739
2096 16,850,394 5,598,366
2095 16,732,430 5,587,141
2094 16,610,512 5,575,743
2093 16,485,880 5,563,600
2092 16,359,440 5,550,506
2091 16,229,167 5,537,031
2090 16,097,149 5,522,419
2089 15,962,562 5,507,083
2088 15,824,899 5,491,226
2087 15,683,760 5,475,425
2086 15,541,281 5,459,661
2085 15,397,701 5,442,388
2084 15,251,533 5,424,928
2083 15,102,125 5,406,747
2082 14,952,194 5,388,623
2081 14,799,309 5,369,593
2080 14,645,548 5,349,817
2079 14,490,500 5,329,240
2078 14,331,284 5,307,283
2077 14,170,045 5,286,383
2076 14,007,555 5,264,220
2075 13,843,393 5,241,700
2074 13,678,579 5,218,897
2073 13,512,182 5,195,622
2072 13,343,946 5,172,532
2071 13,172,876 5,149,066
2070 13,002,521 5,124,853
2069 12,830,090 5,101,195
2068 12,657,711 5,077,035
2067 12,482,299 5,052,818
2066 12,306,495 5,027,552
2065 12,131,679 5,002,655
2064 11,954,090 4,978,185
2063 11,778,351 4,953,806
2062 11,601,323 4,929,364
2061 11,424,089 4,904,690
2060 11,246,850 4,878,877
2059 11,067,732 4,852,963
2058 10,887,645 4,826,761
2057 10,709,500 4,799,120
2056 10,532,648 4,771,151
2055 10,354,318 4,742,184
2054 10,175,517 4,711,735
2053 9,995,645 4,679,745
2052 9,815,104 4,646,658
2051 9,635,288 4,612,090
2050 9,457,400 4,576,701
2049 9,279,576 4,539,215
2048 9,100,595 4,500,638
2047 8,923,220 4,460,511
2046 8,745,286 4,419,188
2045 8,568,910 4,376,222
2044 8,393,773 4,333,010
2043 8,218,850 4,289,776
2042 8,044,865 4,245,757
2041 7,873,599 4,201,838
2040 7,703,561 4,158,320
2039 7,534,623 4,115,023
2038 7,366,187 4,072,646
2037 7,199,542 4,030,644
2036 7,033,866 3,989,867
2035 6,869,186 3,950,239
2034 6,705,635 3,911,316
2033 6,543,505 3,873,353
2032 6,383,229 3,836,311
2031 6,225,030 3,800,027
2030 6,068,395 3,763,374
2029 5,914,109 3,726,490
2028 5,761,715 3,688,767
2027 5,611,635 3,650,012
2026 5,462,675 3,610,395
2025 5,315,065 3,568,978
2024 5,169,395 3,524,788
2023 5,022,441 3,481,145
2022 4,875,637 3,433,748
2021 4,734,874 3,383,741
2020 4,600,131 3,327,204
2019 4,467,708 3,267,673
2018 4,337,685 3,208,189
2017 4,210,600 3,148,917
2016 4,086,657 3,088,856
2015 3,965,959 3,026,864
2014 3,848,514 2,963,113
2013 3,734,318 2,899,011
2012 3,619,034 2,839,705
2011 3,502,811 2,786,317
2010 3,390,965 2,738,622
2009 3,284,448 2,691,115
2008 3,183,269 2,643,201
2007 3,093,059 2,601,850
2006 3,013,660 2,567,168
2005 2,939,059 2,536,407
2004 2,868,664 2,508,412
2003 2,802,046 2,480,374
2002 2,738,655 2,449,027
2001 2,678,760 2,417,751
2000 2,613,441 2,388,299
1999 2,541,698 2,356,813
1998 2,474,651 2,323,809
1997 2,411,306 2,291,750
1996 2,358,188 2,259,507
1995 2,312,017 2,224,945
1994 2,249,454 2,189,395
1993 2,174,328 2,165,130
1992 2,088,135 2,167,790
1991 2,009,738 2,165,342
1990 1,951,878 2,098,710
1989 1,903,048 2,124,185
1988 1,855,859 2,076,322
1987 1,803,014 2,022,800
1986 1,751,835 1,970,965
1985 1,702,107 1,921,514
1984 1,653,693 1,874,349
1983 1,606,746 1,829,092
1982 1,561,176 1,785,364
1981 1,516,877 1,742,857
1980 1,474,043 1,701,335
1979 1,432,758 1,660,659
1978 1,392,713 1,619,468
1977 1,353,768 1,576,245
1976 1,315,336 1,531,945
1975 1,277,330 1,488,296
1974 1,240,188 1,446,050
1973 1,203,838 1,405,502
1972 1,168,355 1,366,821
1971 1,133,702 1,330,071
1970 1,099,806 1,295,272
1969 1,066,754 1,262,284
1968 1,034,739 1,229,930
1967 1,003,843 1,196,996
1966 974,157 1,163,754
1965 945,838 1,131,177
1964 918,955 1,100,234
1963 893,423 1,071,362
1962 869,184 1,041,444
1961 846,167 1,009,284
1960 824,298 977,595

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/mongolia | CC BY

From 2006 to 2016, the population of Mauritania increased by 1,072,997 people (a 35.6% growth), while Mongolia gained 521,688 people (a 20.3% growth).

For the next 10 years, from 2016 to 2026, Mauritania gained 1,452,532 people (a 35.5% growth), while Mongolia's population increased by 541,888 people (a 17.5% growth).

Mauritania was ranked 132nd most populous country in 2006 and is 123rd in 2026. Mongolia was ranked 137th in 2006 and ranked 132nd 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 Mongolia will increase by 26.1% to 4,576,701 people and rank change from 132nd to 130th.

Mauritania is projected to reach its peak in 2100 at 17.3M people compared to the peak of 5.63M people in 2100 for Mongolia.

Population growth rate by year

Mauritania
Factual

Projection
Mongolia
Factual

Projection
1x
Year Growth rate
Mauritania Mongolia
2100 0.62% 0.11%
2099 0.66% 0.14%
2098 0.68% 0.16%
2097 0.7% 0.17%
2096 0.7% 0.2%
2095 0.73% 0.2%
2094 0.76% 0.22%
2093 0.77% 0.24%
2092 0.8% 0.24%
2091 0.82% 0.26%
2090 0.84% 0.28%
2089 0.87% 0.29%
2088 0.9% 0.29%
2087 0.92% 0.29%
2086 0.93% 0.32%
2085 0.96% 0.32%
2084 0.99% 0.34%
2083 1% 0.34%
2082 1.03% 0.35%
2081 1.05% 0.37%
2080 1.07% 0.39%
2079 1.11% 0.41%
2078 1.14% 0.4%
2077 1.16% 0.42%
2076 1.19% 0.43%
2075 1.2% 0.44%
2074 1.23% 0.45%
2073 1.26% 0.45%
2072 1.3% 0.46%
2071 1.31% 0.47%
2070 1.34% 0.46%
2069 1.36% 0.48%
2068 1.41% 0.48%
2067 1.43% 0.5%
2066 1.44% 0.5%
2065 1.49% 0.49%
2064 1.49% 0.49%
2063 1.53% 0.5%
2062 1.55% 0.5%
2061 1.58% 0.53%
2060 1.62% 0.53%
2059 1.65% 0.54%
2058 1.66% 0.58%
2057 1.68% 0.59%
2056 1.72% 0.61%
2055 1.76% 0.65%
2054 1.8% 0.68%
2053 1.84% 0.71%
2052 1.87% 0.75%
2051 1.88% 0.77%
2050 1.92% 0.83%
2049 1.97% 0.86%
2048 1.99% 0.9%
2047 2.03% 0.94%
2046 2.06% 0.98%
2045 2.09% 1%
2044 2.13% 1.01%
2043 2.16% 1.04%
2042 2.18% 1.05%
2041 2.21% 1.05%
2040 2.24% 1.05%
2039 2.29% 1.04%
2038 2.31% 1.04%
2037 2.36% 1.02%
2036 2.4% 1%
2035 2.44% 1%
2034 2.48% 0.98%
2033 2.51% 0.97%
2032 2.54% 0.95%
2031 2.58% 0.97%
2030 2.61% 0.99%
2029 2.64% 1.02%
2028 2.67% 1.06%
2027 2.73% 1.1%
2026 2.78% 1.16%
2025 2.82% 1.25%
2024 2.93% 1.25%
2023 3.01% 1.38%
2022 2.97% 1.48%
2021 2.93% 1.7%
2020 2.96% 1.82%
2019 3% 1.85%
2018 3.02% 1.88%
2017 3.03% 1.94%
2016 3.04% 2.05%
2015 3.05% 2.15%
2014 3.06% 2.21%
2013 3.19% 2.09%
2012 3.32% 1.92%
2011 3.3% 1.74%
2010 3.24% 1.77%
2009 3.18% 1.81%
2008 2.92% 1.59%
2007 2.63% 1.35%
2006 2.54% 1.21%
2005 2.45% 1.12%
2004 2.38% 1.13%
2003 2.31% 1.28%
2002 2.24% 1.29%
2001 2.5% 1.23%
2000 2.82% 1.34%
1999 2.71% 1.42%
1998 2.63% 1.4%
1997 2.25% 1.43%
1996 2% 1.55%
1995 2.78% 1.62%
1994 3.46% 1.12%
1993 4.13% -0.12%
1992 3.9% 0.11%
1991 2.96% 3.17%
1990 2.57% -1.2%
1989 2.54% 2.31%
1988 2.93% 2.65%
1987 2.92% 2.63%
1986 2.92% 2.57%
1985 2.93% 2.52%
1984 2.92% 2.47%
1983 2.92% 2.45%
1982 2.92% 2.44%
1981 2.91% 2.44%
1980 2.88% 2.45%
1979 2.88% 2.54%
1978 2.88% 2.74%
1977 2.92% 2.89%
1976 2.98% 2.93%
1975 2.99% 2.92%
1974 3.02% 2.88%
1973 3.04% 2.83%
1972 3.06% 2.76%
1971 3.08% 2.69%
1970 3.1% 2.61%
1969 3.09% 2.63%
1968 3.08% 2.75%
1967 3.05% 2.86%
1966 2.99% 2.88%
1965 2.93% 2.81%
1964 2.86% 2.69%
1963 2.79% 2.87%
1962 2.72% 3.19%
1961 2.65% 3.24%

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/mongolia | CC BY

In 2025, the population of Mauritania grew by 2.82%, while Mongolia's population grew by 1.25%.

Live population counters

Mauritania Mongolia
Current population
5539189
3630744
Population rank 123/197 132/197
Percent of world population 0.07% 0.04%
One net population change
3.62 minutes
11.9 minutes
One birth every
2.99 minutes
8.82 minutes
One death every
18.8 minutes
27.1 minutes
Daily growth/decline +399 +121
Annual growth/decline +145,670 +44,190
Annual growth/decline rate +2.82% +1.25%
Population growth rate rank 18/197 81/197
One migration net change every
1.74 hours
4.63 days
Annual migration change -5,044 +79
Net migration rank 115/196 74/196
Foreign-born residents 195,937 22,589
Foreign-born residents rank 113/195 169/195
Foreign-born share of population 3.8% 0.6%
Foreign-born share rank 107/195 171/195

Natural population change vs migration

Mauritania
Natural

Migration
Mongolia
Natural

Migration
1x
Year Population change
Mauritania Mongolia
Natural Migration Natural Migration
2025 - -5,044 - 79
2024 147,927 -2,185 40,182 83
2023 145,164 2,999 46,995 0
2022 142,451 2,999 47,730 0
2021 137,557 -1,483 52,109 0
2020 134,899 -1,483 60,888 0
2019 134,460 -3,019 61,433 8,660
2018 131,584 -2,987 60,635 7,811
2017 128,562 -3,001 57,940 6,831
2016 125,342 -3,008 62,086 5,633
2015 122,092 -3,019 64,473 4,307
2014 118,792 -2,980 66,078 2,921
2013 115,558 -2,987 62,618 1,505
2012 113,489 4,515 55,942 351
2011 111,165 3,272 50,711 -505
2010 108,121 1,128 44,914 -6,444
2009 105,273 -1,481 48,876 -15,007
2008 102,432 -3,860 45,843 -17,277
2007 98,895 -17,048 39,636 -15,220
2006 94,991 -18,033 33,609 -11,934
2005 90,940 -18,693 29,290 -8,924
2004 87,578 -19,042 28,418 -8,148
2003 83,804 -19,104 28,827 -7,986
2002 80,993 -18,903 30,439 -8,934
2001 78,769 -21,067 32,052 -10,244
2000 75,929 -2,997 32,753 -11,241
1999 73,554 -2,999 32,283 -13,481
1998 72,045 -8,504 31,757 -10,315
1997 71,327 -8,187 32,403 -9,132
1996 71,939 -28,840 33,741 -8,626
1995 72,244 -22,997 34,473 -7,346
1994 70,570 5,304 34,711 -5,449
1993 68,167 6,217 36,924 -5,429
1992 63,501 34,505 42,437 -8,404
1991 61,782 -2,997 47,884 -11,427
1990 59,934 -3,000 49,443 -11,881
1989 58,666 -17,941 51,420 -9,757
1988 56,654 -2,997 51,588 2,459
1987 55,037 -2,998 51,140 1,855
1986 53,313 -2,998 50,329 354
1985 52,125 -2,998 49,944 -1,719
1984 50,705 -2,998 48,562 -2,452
1983 49,187 -2,998 46,919 -2,522
1982 47,947 -2,998 45,179 -2,132
1981 46,641 -2,998 43,588 -1,615
1980 45,026 -2,997 42,343 -1,268
1979 43,537 -2,997 41,568 -1,296
1978 42,539 -2,998 40,276 1,833
1977 41,352 -2,999 38,995 5,354
1976 40,149 -1,645 37,670 6,577
1975 38,975 -1,472 36,490 6,556
1974 38,106 -1,321 35,297 6,153
1973 37,122 -1,201 33,993 5,647
1972 36,184 -1,139 32,727 4,999
1971 35,279 -1,014 31,536 4,238
1970 34,382 -855 30,558 3,263
1969 33,252 -688 29,781 2,366
1968 32,029 -565 29,017 3,535
1967 30,853 -514 28,178 5,139
1966 29,502 -466 27,338 5,837
1965 28,028 -434 26,364 5,610
1964 26,565 -390 25,317 4,599
1963 25,250 -362 24,142 3,687
1962 23,927 -342 22,960 9,049
1961 22,781 -332 21,873 10,440
1960 21,604 -318 20,726 10,334

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

GeoRank.org/population/mauritania/mongolia | 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 Mongolia 94.3% is from natural causes (a gain of 554,471 people) and 5.67% is from migration (a gain of 33,325 people).

As of 2024, 195,937 residents or 3.8% of the population were not native-born in Mauritania, compared to 22,589 people or 0.6% in Mongolia.

Biggest cities by population

Mauritania
City Population
Nouakchott 1.45M
Rosso 61.2K
Mongolia
City Population
Ulaanbaatar 1.4M
Bulgan 12.3K

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/mongolia | 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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