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Population in Mongolia compared to Papua New Guinea: Trends, Charts, Rankings

Updated on by Georank

The latest officially reported population of Mongolia was 3,568,978 in 2025 vs 10,762,817 people in Papua New Guinea in 2025. In 2026, based on the adjusted UN estimation, the current Mongolia's population is 3,630,744 people compared to 11,045,681 in Papua New Guinea.

Population statistics:

  • Papua New Guinea's population is 3.04 times bigger than Mongolia's.
  • Mongolia is ranked the 132nd most populous country in the world, while Papua New Guinea is the 89th.
  • The countries together account for 0.18% of the world: 0.04% for Mongolia vs 0.13% for Papua New Guinea.
  • For the last 10 years, Mongolia has had an average growth rate of +1.71% per year vs +2.14% in Papua New Guinea.
  • Since 2006, the population of Mongolia has increased from 2.57M people to 3.63M (41.4% growth), while Papua New Guinea has grown from 6.75M to 11M (63.7% growth).

Mongolia vs Papua New Guinea: population by year and forecast

Mongolia
Factual

Projection
Papua New Guinea
Factual

Projection
1x
Year Population
Mongolia Papua New Guinea
2100 5,630,532 18,798,240
2099 5,624,298 18,786,145
2098 5,616,442 18,772,372
2097 5,607,739 18,755,008
2096 5,598,366 18,733,822
2095 5,587,141 18,710,340
2094 5,575,743 18,683,383
2093 5,563,600 18,654,365
2092 5,550,506 18,621,911
2091 5,537,031 18,586,147
2090 5,522,419 18,545,656
2089 5,507,083 18,506,626
2088 5,491,226 18,464,999
2087 5,475,425 18,420,558
2086 5,459,661 18,372,233
2085 5,442,388 18,321,842
2084 5,424,928 18,270,605
2083 5,406,747 18,214,932
2082 5,388,623 18,159,412
2081 5,369,593 18,100,531
2080 5,349,817 18,035,268
2079 5,329,240 17,972,052
2078 5,307,283 17,904,957
2077 5,286,383 17,837,082
2076 5,264,220 17,768,107
2075 5,241,700 17,695,759
2074 5,218,897 17,621,390
2073 5,195,622 17,544,490
2072 5,172,532 17,463,028
2071 5,149,066 17,377,995
2070 5,124,853 17,291,519
2069 5,101,195 17,201,936
2068 5,077,035 17,108,606
2067 5,052,818 17,011,562
2066 5,027,552 16,911,929
2065 5,002,655 16,809,460
2064 4,978,185 16,705,205
2063 4,953,806 16,600,853
2062 4,929,364 16,493,872
2061 4,904,690 16,383,508
2060 4,878,877 16,267,162
2059 4,852,963 16,149,265
2058 4,826,761 16,029,360
2057 4,799,120 15,906,350
2056 4,771,151 15,781,247
2055 4,742,184 15,653,296
2054 4,711,735 15,519,925
2053 4,679,745 15,386,054
2052 4,646,658 15,247,553
2051 4,612,090 15,107,257
2050 4,576,701 14,965,427
2049 4,539,215 14,818,793
2048 4,500,638 14,670,417
2047 4,460,511 14,519,915
2046 4,419,188 14,367,141
2045 4,376,222 14,210,639
2044 4,333,010 14,053,122
2043 4,289,776 13,894,884
2042 4,245,757 13,735,841
2041 4,201,838 13,574,567
2040 4,158,320 13,410,615
2039 4,115,023 13,244,740
2038 4,072,646 13,076,640
2037 4,030,644 12,907,059
2036 3,989,867 12,735,582
2035 3,950,239 12,563,938
2034 3,911,316 12,389,907
2033 3,873,353 12,215,713
2032 3,836,311 12,039,848
2031 3,800,027 11,862,856
2030 3,763,374 11,683,177
2029 3,726,490 11,502,504
2028 3,688,767 11,320,226
2027 3,650,012 11,136,100
2026 3,610,395 10,950,183
2025 3,568,978 10,762,817
2024 3,524,788 10,576,502
2023 3,481,145 10,389,635
2022 3,433,748 10,203,169
2021 3,383,741 10,012,896
2020 3,327,204 9,815,746
2019 3,267,673 9,609,010
2018 3,208,189 9,394,513
2017 3,148,917 9,178,714
2016 3,088,856 8,961,718
2015 3,026,864 8,743,246
2014 2,963,113 8,523,441
2013 2,899,011 8,302,698
2012 2,839,705 8,081,390
2011 2,786,317 7,859,346
2010 2,738,622 7,633,523
2009 2,691,115 7,406,438
2008 2,643,201 7,183,002
2007 2,601,850 6,963,345
2006 2,567,168 6,747,720
2005 2,536,407 6,535,905
2004 2,508,412 6,328,041
2003 2,480,374 6,123,997
2002 2,449,027 5,924,003
2001 2,417,751 5,728,435
2000 2,388,299 5,537,064
1999 2,356,813 5,349,333
1998 2,323,809 5,166,390
1997 2,291,750 4,987,883
1996 2,259,507 4,813,361
1995 2,224,945 4,644,278
1994 2,189,395 4,480,208
1993 2,165,130 4,320,872
1992 2,167,790 4,166,699
1991 2,165,342 4,021,837
1990 2,098,710 3,896,481
1989 2,124,185 3,796,078
1988 2,076,322 3,711,880
1987 2,022,800 3,632,543
1986 1,970,965 3,554,793
1985 1,921,514 3,478,936
1984 1,874,349 3,405,198
1983 1,829,092 3,333,633
1982 1,785,364 3,264,291
1981 1,742,857 3,197,019
1980 1,701,335 3,131,512
1979 1,660,659 3,067,341
1978 1,619,468 3,003,714
1977 1,576,245 2,940,327
1976 1,531,945 2,877,327
1975 1,488,296 2,814,820
1974 1,446,050 2,752,671
1973 1,405,502 2,690,629
1972 1,366,821 2,628,432
1971 1,330,071 2,566,421
1970 1,295,272 2,505,628
1969 1,262,284 2,446,927
1968 1,229,930 2,390,803
1967 1,196,996 2,337,532
1966 1,163,754 2,285,774
1965 1,131,177 2,235,820
1964 1,100,234 2,188,325
1963 1,071,362 2,141,376
1962 1,041,444 2,093,919
1961 1,009,284 2,046,127
1960 977,595 1,995,110

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/papua-new-guinea | CC BY

From 2006 to 2016, the population of Mongolia increased by 521,688 people (a 20.3% growth), while Papua New Guinea gained 2,213,998 people (a 32.8% growth).

For the next 10 years, from 2016 to 2026, Mongolia gained 541,888 people (a 17.5% growth), while Papua New Guinea's population increased by 2,083,963 people (a 23.3% growth).

Mongolia was ranked 137th most populous country in 2006 and is 132nd in 2026. Papua New Guinea was ranked 100th in 2006 and ranked 89th 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 Papua New Guinea will increase by 35.5% to 14,965,427 people and rank change from 89th to 84th.

Mongolia is projected to reach its peak in 2100 at 5.63M people compared to the peak of 18.8M people in 2100 for Papua New Guinea.

Population growth rate by year

Mongolia
Factual

Projection
Papua New Guinea
Factual

Projection
1x
Year Growth rate
Mongolia Papua New Guinea
2100 0.11% 0.06%
2099 0.14% 0.07%
2098 0.16% 0.09%
2097 0.17% 0.11%
2096 0.2% 0.13%
2095 0.2% 0.14%
2094 0.22% 0.16%
2093 0.24% 0.17%
2092 0.24% 0.19%
2091 0.26% 0.22%
2090 0.28% 0.21%
2089 0.29% 0.23%
2088 0.29% 0.24%
2087 0.29% 0.26%
2086 0.32% 0.28%
2085 0.32% 0.28%
2084 0.34% 0.31%
2083 0.34% 0.31%
2082 0.35% 0.33%
2081 0.37% 0.36%
2080 0.39% 0.35%
2079 0.41% 0.37%
2078 0.4% 0.38%
2077 0.42% 0.39%
2076 0.43% 0.41%
2075 0.44% 0.42%
2074 0.45% 0.44%
2073 0.45% 0.47%
2072 0.46% 0.49%
2071 0.47% 0.5%
2070 0.46% 0.52%
2069 0.48% 0.55%
2068 0.48% 0.57%
2067 0.5% 0.59%
2066 0.5% 0.61%
2065 0.49% 0.62%
2064 0.49% 0.63%
2063 0.5% 0.65%
2062 0.5% 0.67%
2061 0.53% 0.72%
2060 0.53% 0.73%
2059 0.54% 0.75%
2058 0.58% 0.77%
2057 0.59% 0.79%
2056 0.61% 0.82%
2055 0.65% 0.86%
2054 0.68% 0.87%
2053 0.71% 0.91%
2052 0.75% 0.93%
2051 0.77% 0.95%
2050 0.83% 0.99%
2049 0.86% 1.01%
2048 0.9% 1.04%
2047 0.94% 1.06%
2046 0.98% 1.1%
2045 1% 1.12%
2044 1.01% 1.14%
2043 1.04% 1.16%
2042 1.05% 1.19%
2041 1.05% 1.22%
2040 1.05% 1.25%
2039 1.04% 1.29%
2038 1.04% 1.31%
2037 1.02% 1.35%
2036 1% 1.37%
2035 1% 1.4%
2034 0.98% 1.43%
2033 0.97% 1.46%
2032 0.95% 1.49%
2031 0.97% 1.54%
2030 0.99% 1.57%
2029 1.02% 1.61%
2028 1.06% 1.65%
2027 1.1% 1.7%
2026 1.16% 1.74%
2025 1.25% 1.76%
2024 1.25% 1.8%
2023 1.38% 1.83%
2022 1.48% 1.9%
2021 1.7% 2.01%
2020 1.82% 2.15%
2019 1.85% 2.28%
2018 1.88% 2.35%
2017 1.94% 2.42%
2016 2.05% 2.5%
2015 2.15% 2.58%
2014 2.21% 2.66%
2013 2.09% 2.74%
2012 1.92% 2.83%
2011 1.74% 2.96%
2010 1.77% 3.07%
2009 1.81% 3.11%
2008 1.59% 3.15%
2007 1.35% 3.2%
2006 1.21% 3.24%
2005 1.12% 3.28%
2004 1.13% 3.33%
2003 1.28% 3.38%
2002 1.29% 3.41%
2001 1.23% 3.46%
2000 1.34% 3.51%
1999 1.42% 3.54%
1998 1.4% 3.58%
1997 1.43% 3.63%
1996 1.55% 3.64%
1995 1.62% 3.66%
1994 1.12% 3.69%
1993 -0.12% 3.7%
1992 0.11% 3.6%
1991 3.17% 3.22%
1990 -1.2% 2.64%
1989 2.31% 2.27%
1988 2.65% 2.18%
1987 2.63% 2.19%
1986 2.57% 2.18%
1985 2.52% 2.17%
1984 2.47% 2.15%
1983 2.45% 2.12%
1982 2.44% 2.1%
1981 2.44% 2.09%
1980 2.45% 2.09%
1979 2.54% 2.12%
1978 2.74% 2.16%
1977 2.89% 2.19%
1976 2.93% 2.22%
1975 2.92% 2.26%
1974 2.88% 2.31%
1973 2.83% 2.37%
1972 2.76% 2.42%
1971 2.69% 2.43%
1970 2.61% 2.4%
1969 2.63% 2.35%
1968 2.75% 2.28%
1967 2.86% 2.26%
1966 2.88% 2.23%
1965 2.81% 2.17%
1964 2.69% 2.19%
1963 2.87% 2.27%
1962 3.19% 2.34%
1961 3.24% 2.56%

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/papua-new-guinea | CC BY

In 2025, the population of Mongolia grew by 1.25%, while Papua New Guinea's population grew by 1.76%.

Live population counters

Mongolia Papua New Guinea
Current population
3630744
11045681
Population rank 132/197 89/197
Percent of world population 0.04% 0.13%
One net population change
11.9 minutes
2.83 minutes
One birth every
8.82 minutes
2.05 minutes
One death every
27.1 minutes
7.58 minutes
Daily growth/decline +121 +510
Annual growth/decline +44,190 +186,315
Annual growth/decline rate +1.25% +1.76%
Population growth rate rank 81/197 59/197
One migration net change every
4.63 days
1.29 days
Annual migration change +79 -284
Net migration rank 74/196 87/196
Foreign-born residents 22,589 31,171
Foreign-born residents rank 169/195 163/195
Foreign-born share of population 0.6% 0.3%
Foreign-born share rank 171/195 183/195

Natural population change vs migration

Mongolia
Natural

Migration
Papua New Guinea
Natural

Migration
1x
Year Population change
Mongolia Papua New Guinea
Natural Migration Natural Migration
2025 - 79 - -284
2024 40,182 83 187,595 -707
2023 46,995 0 187,637 -787
2022 47,730 0 186,861 -787
2021 52,109 0 183,766 10,703
2020 60,888 0 189,130 10,703
2019 61,433 8,660 190,662 22,978
2018 60,635 7,811 190,662 24,684
2017 57,940 6,831 189,715 26,513
2016 62,086 5,633 189,281 28,473
2015 64,473 4,307 188,600 30,580
2014 66,078 2,921 187,592 32,840
2013 62,618 1,505 185,790 35,280
2012 55,942 351 183,658 37,893
2011 50,711 -505 181,842 40,690
2010 44,914 -6,444 178,998 50,106
2009 48,876 -15,007 175,421 49,647
2008 45,843 -17,277 172,823 48,985
2007 39,636 -15,220 169,306 48,203
2006 33,609 -11,934 166,540 47,191
2005 29,290 -8,924 163,888 46,014
2004 28,418 -8,148 161,023 44,811
2003 28,827 -7,986 158,611 43,639
2002 30,439 -8,934 155,091 42,657
2001 32,052 -10,244 151,431 41,962
2000 32,753 -11,241 147,496 41,855
1999 32,283 -13,481 143,592 42,519
1998 31,757 -10,315 136,677 43,091
1997 32,403 -9,132 134,458 42,787
1996 33,741 -8,626 129,802 41,994
1995 34,473 -7,346 125,410 40,962
1994 34,711 -5,449 122,113 39,669
1993 36,924 -5,429 118,668 38,220
1992 42,437 -8,404 114,818 36,622
1991 47,884 -11,427 111,453 26,830
1990 49,443 -11,881 110,033 2,398
1989 51,420 -9,757 108,199 -19,824
1988 51,588 2,459 106,256 -26,232
1987 51,140 1,855 104,367 -25,720
1986 50,329 354 102,346 -25,495
1985 49,944 -1,719 100,333 -25,470
1984 48,562 -2,452 98,103 -25,487
1983 46,919 -2,522 95,982 -25,465
1982 45,179 -2,132 93,522 -25,355
1981 43,588 -1,615 91,767 -25,383
1980 42,343 -1,268 90,266 -25,638
1979 41,568 -1,296 89,330 -25,618
1978 40,276 1,833 88,747 -25,208
1977 38,995 5,354 87,954 -24,722
1976 37,670 6,577 86,965 -24,198
1975 36,490 6,556 85,809 -23,562
1974 35,297 6,153 84,829 -22,771
1973 33,993 5,647 83,821 -21,803
1972 32,727 4,999 82,672 -20,303
1971 31,536 4,238 80,599 -18,945
1970 30,558 3,263 78,712 -18,773
1969 29,781 2,366 76,454 -18,994
1968 29,017 3,535 73,983 -19,188
1967 28,178 5,139 71,519 -19,767
1966 27,338 5,837 69,206 -17,454
1965 26,364 5,610 66,693 -18,532
1964 25,317 4,599 64,558 -17,730
1963 24,142 3,687 62,260 -15,189
1962 22,960 9,049 59,974 -12,141
1961 21,873 10,440 58,151 -10,409
1960 20,726 10,334 56,326 -2,034

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

GeoRank.org/population/mongolia/papua-new-guinea | 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 Papua New Guinea 92.5% is from natural causes (a gain of 1,883,909 people) and 7.48% is from migration (a gain of 152,353 people).

As of 2024, 22,589 residents or 0.6% of the population were not native-born in Mongolia, compared to 31,171 people or 0.3% in Papua New Guinea.

Biggest cities by population

Mongolia
City Population
Ulaanbaatar 1.4M
Bulgan 12.3K
Papua New Guinea
City Population
Port Moresby 317K
Lae 101K

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/papua-new-guinea | 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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