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

Updated on by Georank

The latest officially reported population of Mongolia was 3,568,978 in 2025 vs 103,742 people in Tonga in 2025. In 2026, based on the adjusted UN estimation, the current Mongolia's population is 3,630,744 people compared to 103,283 in Tonga.

Population statistics:

  • Mongolia's population is 35.2 times bigger than Tonga's.
  • Mongolia is ranked the 132nd most populous country in the world, while Tonga is the 183rd.
  • The countries together account for 0.04% of the world: 0.04% for Mongolia vs 0.001% for Tonga.
  • For the last 10 years, Mongolia has had an average growth rate of +1.71% per year vs -0.25% in Tonga.
  • Since 2006, the population of Mongolia has increased from 2.57M people to 3.63M (41.4% growth), while Tonga has declined from 106K to 103K (2.8% decline).

Mongolia vs Tonga: population by year and forecast

Mongolia
Factual

Projection
Tonga
Factual

Projection
1x
Year Population
Mongolia Tonga
2100 5,630,532 117,617
2099 5,624,298 117,585
2098 5,616,442 117,530
2097 5,607,739 117,492
2096 5,598,366 117,461
2095 5,587,141 117,383
2094 5,575,743 117,290
2093 5,563,600 117,207
2092 5,550,506 117,097
2091 5,537,031 116,983
2090 5,522,419 116,838
2089 5,507,083 116,682
2088 5,491,226 116,481
2087 5,475,425 116,277
2086 5,459,661 116,088
2085 5,442,388 115,872
2084 5,424,928 115,628
2083 5,406,747 115,336
2082 5,388,623 115,041
2081 5,369,593 114,752
2080 5,349,817 114,424
2079 5,329,240 114,074
2078 5,307,283 113,710
2077 5,286,383 113,349
2076 5,264,220 112,945
2075 5,241,700 112,565
2074 5,218,897 112,179
2073 5,195,622 111,790
2072 5,172,532 111,377
2071 5,149,066 110,963
2070 5,124,853 110,576
2069 5,101,195 110,209
2068 5,077,035 109,825
2067 5,052,818 109,446
2066 5,027,552 109,062
2065 5,002,655 108,736
2064 4,978,185 108,377
2063 4,953,806 108,033
2062 4,929,364 107,710
2061 4,904,690 107,396
2060 4,878,877 107,117
2059 4,852,963 106,842
2058 4,826,761 106,589
2057 4,799,120 106,345
2056 4,771,151 106,130
2055 4,742,184 105,915
2054 4,711,735 105,698
2053 4,679,745 105,486
2052 4,646,658 105,286
2051 4,612,090 105,079
2050 4,576,701 104,844
2049 4,539,215 104,636
2048 4,500,638 104,387
2047 4,460,511 104,154
2046 4,419,188 103,852
2045 4,376,222 103,548
2044 4,333,010 103,215
2043 4,289,776 102,934
2042 4,245,757 102,692
2041 4,201,838 102,447
2040 4,158,320 102,228
2039 4,115,023 102,061
2038 4,072,646 101,835
2037 4,030,644 101,707
2036 3,989,867 101,627
2035 3,950,239 101,580
2034 3,911,316 101,571
2033 3,873,353 101,591
2032 3,836,311 101,633
2031 3,800,027 101,764
2030 3,763,374 101,928
2029 3,726,490 102,181
2028 3,688,767 102,494
2027 3,650,012 102,841
2026 3,610,395 103,283
2025 3,568,978 103,742
2024 3,524,788 104,175
2023 3,481,145 104,597
2022 3,433,748 105,042
2021 3,383,741 105,490
2020 3,327,204 105,704
2019 3,267,673 105,669
2018 3,208,189 105,567
2017 3,148,917 105,356
2016 3,088,856 105,524
2015 3,026,864 106,095
2014 2,963,113 106,609
2013 2,899,011 107,078
2012 2,839,705 107,460
2011 2,786,317 107,570
2010 2,738,622 107,400
2009 2,691,115 107,203
2008 2,643,201 107,020
2007 2,601,850 106,726
2006 2,567,168 106,253
2005 2,536,407 105,671
2004 2,508,412 105,071
2003 2,480,374 104,464
2002 2,449,027 103,874
2001 2,417,751 103,288
2000 2,388,299 102,677
1999 2,356,813 102,046
1998 2,323,809 101,388
1997 2,291,750 100,674
1996 2,259,507 100,275
1995 2,224,945 100,225
1994 2,189,395 100,166
1993 2,165,130 100,103
1992 2,167,790 100,022
1991 2,165,342 99,895
1990 2,098,710 99,700
1989 2,124,185 99,403
1988 2,076,322 98,969
1987 2,022,800 98,376
1986 1,970,965 98,010
1985 1,921,514 97,984
1984 1,874,349 97,990
1983 1,829,092 97,998
1982 1,785,364 97,980
1981 1,742,857 97,909
1980 1,701,335 97,769
1979 1,660,659 97,544
1978 1,619,468 97,204
1977 1,576,245 96,725
1976 1,531,945 95,325
1975 1,488,296 93,017
1974 1,446,050 90,683
1973 1,405,502 88,805
1972 1,366,821 87,356
1971 1,330,071 85,896
1970 1,295,272 84,401
1969 1,262,284 82,885
1968 1,229,930 81,353
1967 1,196,996 79,814
1966 1,163,754 78,002
1965 1,131,177 75,924
1964 1,100,234 73,879
1963 1,071,362 71,885
1962 1,041,444 69,940
1961 1,009,284 68,037
1960 977,595 66,170

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/mongolia/tonga | CC BY

From 2006 to 2016, the population of Mongolia increased by 521,688 people (a 20.3% growth), while Tonga lost 729 people (a 0.69% decline).

For the next 10 years, from 2016 to 2026, Mongolia gained 541,888 people (a 17.5% growth), while Tonga's population decreased by 2,241 people (a 2.12% decline).

Mongolia was ranked 137th most populous country in 2006 and is 132nd in 2026. Tonga was ranked 182nd in 2006 and ranked 183rd now.

The UN's World Population Prospects forecasts that in 24 years (in 2050) Mongolia's population will grow by 26.1% to 4,576,701 people with a rank change from 132nd to 130th. The population of Tonga will increase by 1.51% to 104,844 people and will still be ranked 183rd.

Mongolia is projected to reach its peak in 2100 at 5.63M people compared to the peak of 118K people in 2100 for Tonga.

Population growth rate by year

Mongolia
Factual

Projection
Tonga
Factual

Projection
1x
Year Growth rate
Mongolia Tonga
2100 0.11% 0.03%
2099 0.14% 0.05%
2098 0.16% 0.03%
2097 0.17% 0.03%
2096 0.2% 0.07%
2095 0.2% 0.08%
2094 0.22% 0.07%
2093 0.24% 0.09%
2092 0.24% 0.1%
2091 0.26% 0.12%
2090 0.28% 0.13%
2089 0.29% 0.17%
2088 0.29% 0.18%
2087 0.29% 0.16%
2086 0.32% 0.19%
2085 0.32% 0.21%
2084 0.34% 0.25%
2083 0.34% 0.26%
2082 0.35% 0.25%
2081 0.37% 0.29%
2080 0.39% 0.31%
2079 0.41% 0.32%
2078 0.4% 0.32%
2077 0.42% 0.36%
2076 0.43% 0.34%
2075 0.44% 0.34%
2074 0.45% 0.35%
2073 0.45% 0.37%
2072 0.46% 0.37%
2071 0.47% 0.35%
2070 0.46% 0.33%
2069 0.48% 0.35%
2068 0.48% 0.35%
2067 0.5% 0.35%
2066 0.5% 0.3%
2065 0.49% 0.33%
2064 0.49% 0.32%
2063 0.5% 0.3%
2062 0.5% 0.29%
2061 0.53% 0.26%
2060 0.53% 0.26%
2059 0.54% 0.24%
2058 0.58% 0.23%
2057 0.59% 0.2%
2056 0.61% 0.2%
2055 0.65% 0.2%
2054 0.68% 0.2%
2053 0.71% 0.19%
2052 0.75% 0.2%
2051 0.77% 0.22%
2050 0.83% 0.2%
2049 0.86% 0.24%
2048 0.9% 0.22%
2047 0.94% 0.29%
2046 0.98% 0.29%
2045 1% 0.32%
2044 1.01% 0.27%
2043 1.04% 0.24%
2042 1.05% 0.24%
2041 1.05% 0.21%
2040 1.05% 0.16%
2039 1.04% 0.22%
2038 1.04% 0.13%
2037 1.02% 0.08%
2036 1% 0.05%
2035 1% 0.009%
2034 0.98% -0.02%
2033 0.97% -0.04%
2032 0.95% -0.13%
2031 0.97% -0.16%
2030 0.99% -0.25%
2029 1.02% -0.31%
2028 1.06% -0.34%
2027 1.1% -0.43%
2026 1.16% -0.44%
2025 1.25% -0.42%
2024 1.25% -0.4%
2023 1.38% -0.42%
2022 1.48% -0.42%
2021 1.7% -0.2%
2020 1.82% 0.03%
2019 1.85% 0.1%
2018 1.88% 0.2%
2017 1.94% -0.16%
2016 2.05% -0.54%
2015 2.15% -0.48%
2014 2.21% -0.44%
2013 2.09% -0.36%
2012 1.92% -0.1%
2011 1.74% 0.16%
2010 1.77% 0.18%
2009 1.81% 0.17%
2008 1.59% 0.28%
2007 1.35% 0.45%
2006 1.21% 0.55%
2005 1.12% 0.57%
2004 1.13% 0.58%
2003 1.28% 0.57%
2002 1.29% 0.57%
2001 1.23% 0.6%
2000 1.34% 0.62%
1999 1.42% 0.65%
1998 1.4% 0.71%
1997 1.43% 0.4%
1996 1.55% 0.05%
1995 1.62% 0.06%
1994 1.12% 0.06%
1993 -0.12% 0.08%
1992 0.11% 0.13%
1991 3.17% 0.2%
1990 -1.2% 0.3%
1989 2.31% 0.44%
1988 2.65% 0.6%
1987 2.63% 0.37%
1986 2.57% 0.03%
1985 2.52% -0.006%
1984 2.47% -0.008%
1983 2.45% 0.02%
1982 2.44% 0.07%
1981 2.44% 0.14%
1980 2.45% 0.23%
1979 2.54% 0.35%
1978 2.74% 0.5%
1977 2.89% 1.47%
1976 2.93% 2.48%
1975 2.92% 2.57%
1974 2.88% 2.11%
1973 2.83% 1.66%
1972 2.76% 1.7%
1971 2.69% 1.77%
1970 2.61% 1.83%
1969 2.63% 1.88%
1968 2.75% 1.93%
1967 2.86% 2.32%
1966 2.88% 2.74%
1965 2.81% 2.77%
1964 2.69% 2.77%
1963 2.87% 2.78%
1962 3.19% 2.8%
1961 3.24% 2.82%

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/mongolia/tonga | CC BY

In 2025, the population of Mongolia grew by 1.25%, while Tonga's population declined by 0.42%.

Live population counters

Mongolia Tonga
Current population
3630744
103283
Population rank 132/197 183/197
Percent of world population 0.04% 0.001%
One net population change
11.9 minutes
20.3 hours
One birth every
8.82 minutes
3.65 hours
One death every
27.1 minutes
13.1 hours
Daily growth/decline +121 -1
Annual growth/decline +44,190 -433
Annual growth/decline rate +1.25% -0.42%
Population growth rate rank 81/197 181/197
One migration net change every
4.63 days
4.09 hours
Annual migration change +79 -2,150
Net migration rank 74/196 99/196
Foreign-born residents 22,589 3,581
Foreign-born residents rank 169/195 187/195
Foreign-born share of population 0.6% 3.4%
Foreign-born share rank 171/195 113/195

Natural population change vs migration

Mongolia
Natural

Migration
Tonga
Natural

Migration
1x
Year Population change
Mongolia Tonga
Natural Migration Natural Migration
2025 - 79 - -2,150
2024 40,182 83 1,729 -2,149
2023 46,995 0 1,744 -2,173
2022 47,730 0 1,772 -2,218
2021 52,109 0 1,773 -2,220
2020 60,888 0 1,816 -1,807
2019 61,433 8,660 1,841 -1,778
2018 60,635 7,811 1,873 -1,723
2017 57,940 6,831 1,912 -1,642
2016 62,086 5,633 1,989 -2,591
2015 64,473 4,307 2,064 -2,610
2014 66,078 2,921 2,135 -2,622
2013 62,618 1,505 2,199 -2,637
2012 55,942 351 2,255 -2,578
2011 50,711 -505 2,298 -2,198
2010 44,914 -6,444 2,332 -2,097
2009 48,876 -15,007 2,358 -2,204
2008 45,843 -17,277 2,397 -2,177
2007 39,636 -15,220 2,423 -2,057
2006 33,609 -11,934 2,459 -1,875
2005 29,290 -8,924 2,495 -1,906
2004 28,418 -8,148 2,478 -1,876
2003 28,827 -7,986 2,448 -1,844
2002 30,439 -8,934 2,396 -1,815
2001 32,052 -10,244 2,358 -1,766
2000 32,753 -11,241 2,346 -1,721
1999 32,283 -13,481 2,352 -1,710
1998 31,757 -10,315 2,344 -1,665
1997 32,403 -9,132 2,332 -1,589
1996 33,741 -8,626 2,393 -2,338
1995 34,473 -7,346 2,476 -2,422
1994 34,711 -5,449 2,547 -2,484
1993 36,924 -5,429 2,594 -2,532
1992 42,437 -8,404 2,622 -2,524
1991 47,884 -11,427 2,637 -2,484
1990 49,443 -11,881 2,641 -2,409
1989 51,420 -9,757 2,644 -2,280
1988 51,588 2,459 2,649 -2,138
1987 51,140 1,855 2,646 -1,970
1986 50,329 354 2,704 -2,650
1985 49,944 -1,719 2,762 -2,775
1984 48,562 -2,452 2,814 -2,823
1983 46,919 -2,522 2,840 -2,840
1982 45,179 -2,132 2,853 -2,814
1981 43,588 -1,615 2,882 -2,778
1980 42,343 -1,268 2,885 -2,708
1979 41,568 -1,296 2,884 -2,604
1978 40,276 1,833 2,862 -2,457
1977 38,995 5,354 2,822 -2,273
1976 37,670 6,577 2,769 -523
1975 36,490 6,556 2,709 -346
1974 35,297 6,153 2,650 -344
1973 33,993 5,647 2,617 -1,168
1972 32,727 4,999 2,605 -1,153
1971 31,536 4,238 2,611 -1,138
1970 30,558 3,263 2,628 -1,122
1969 29,781 2,366 2,632 -1,101
1968 29,017 3,535 2,614 -1,078
1967 28,178 5,139 2,603 -1,060
1966 27,338 5,837 2,550 -465
1965 26,364 5,610 2,498 -426
1964 25,317 4,599 2,445 -428
1963 24,142 3,687 2,394 -426
1962 22,960 9,049 2,343 -420
1961 21,873 10,440 2,284 -401
1960 20,726 10,334 2,230 -384

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

GeoRank.org/population/mongolia/tonga | CC BY

Over the last 10 years, 94.3% of the population change in Mongolia is from natural causes (a gain of 554,471 people) and 5.67% is from migration (a gain of 33,325 people). In Tonga 47% is from natural causes (a gain of 18,513 people) and 53% is from migration (a loss of 20,911 people).

As of 2024, 22,589 residents or 0.6% of the population were not native-born in Mongolia, compared to 3,581 people or 3.4% in Tonga.

Biggest cities by population

Mongolia
City Population
Ulaanbaatar 1.4M
Bulgan 12.3K
Tonga
City Population
Nukualofa 23.2K
Mua 5K

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/mongolia/tonga | 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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