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Population in Mongolia compared to South Sudan: Trends, Charts, Rankings

Updated on by Georank

The latest officially reported population of Mongolia was 3,568,978 in 2025 vs 12,188,788 people in South Sudan in 2025. In 2026, based on the adjusted UN estimation, the current Mongolia's population is 3,630,744 people compared to 12,565,048 in South Sudan.

Population statistics:

  • South Sudan's population is 3.46 times bigger than Mongolia's.
  • Mongolia is ranked the 132nd most populous country in the world, while South Sudan is the 80th.
  • The countries together account for 0.19% of the world: 0.04% for Mongolia vs 0.15% for South Sudan.
  • For the last 10 years, Mongolia has had an average growth rate of +1.71% per year vs +0.78% in South Sudan.
  • Since 2006, the population of Mongolia has increased from 2.57M people to 3.63M (41.4% growth), while South Sudan has grown from 7.98M to 12.6M (57.5% growth).

Mongolia vs South Sudan: population by year and forecast

Mongolia
Factual

Projection
South Sudan
Factual

Projection
1x
Year Population
Mongolia South Sudan
2100 5,630,532 24,078,379
2099 5,624,298 24,072,957
2098 5,616,442 24,054,947
2097 5,607,739 24,056,753
2096 5,598,366 24,045,972
2095 5,587,141 24,037,837
2094 5,575,743 24,039,267
2093 5,563,600 24,030,512
2092 5,550,506 24,010,555
2091 5,537,031 23,991,816
2090 5,522,419 23,970,012
2089 5,507,083 23,929,017
2088 5,491,226 23,883,712
2087 5,475,425 23,848,809
2086 5,459,661 23,794,890
2085 5,442,388 23,750,772
2084 5,424,928 23,678,728
2083 5,406,747 23,609,290
2082 5,388,623 23,532,790
2081 5,369,593 23,458,146
2080 5,349,817 23,383,482
2079 5,329,240 23,286,011
2078 5,307,283 23,188,860
2077 5,286,383 23,078,416
2076 5,264,220 22,979,198
2075 5,241,700 22,860,496
2074 5,218,897 22,718,148
2073 5,195,622 22,575,682
2072 5,172,532 22,431,004
2071 5,149,066 22,280,140
2070 5,124,853 22,143,813
2069 5,101,195 21,995,874
2068 5,077,035 21,822,076
2067 5,052,818 21,654,546
2066 5,027,552 21,489,275
2065 5,002,655 21,309,913
2064 4,978,185 21,134,522
2063 4,953,806 20,957,705
2062 4,929,364 20,777,701
2061 4,904,690 20,601,672
2060 4,878,877 20,423,629
2059 4,852,963 20,227,862
2058 4,826,761 20,041,880
2057 4,799,120 19,846,671
2056 4,771,151 19,652,407
2055 4,742,184 19,457,411
2054 4,711,735 19,250,667
2053 4,679,745 19,053,773
2052 4,646,658 18,833,795
2051 4,612,090 18,626,605
2050 4,576,701 18,427,690
2049 4,539,215 18,224,430
2048 4,500,638 18,014,650
2047 4,460,511 17,799,982
2046 4,419,188 17,572,953
2045 4,376,222 17,348,901
2044 4,333,010 17,115,914
2043 4,289,776 16,882,303
2042 4,245,757 16,639,465
2041 4,201,838 16,390,966
2040 4,158,320 16,137,104
2039 4,115,023 15,884,330
2038 4,072,646 15,622,514
2037 4,030,644 15,358,539
2036 3,989,867 15,085,936
2035 3,950,239 14,810,066
2034 3,911,316 14,538,365
2033 3,873,353 14,273,128
2032 3,836,311 14,002,178
2031 3,800,027 13,725,779
2030 3,763,374 13,460,850
2029 3,726,490 13,201,804
2028 3,688,767 12,942,501
2027 3,650,012 12,688,278
2026 3,610,395 12,434,895
2025 3,568,978 12,188,788
2024 3,524,788 11,943,408
2023 3,481,145 11,483,374
2022 3,433,748 11,021,177
2021 3,383,741 10,865,780
2020 3,327,204 10,698,467
2019 3,267,673 10,423,384
2018 3,208,189 10,122,977
2017 3,148,917 10,259,154
2016 3,088,856 10,830,102
2015 3,026,864 11,107,561
2014 2,963,113 11,235,073
2013 2,899,011 11,166,275
2012 2,839,705 10,756,240
2011 2,786,317 10,288,109
2010 2,738,622 9,745,953
2009 2,691,115 9,243,556
2008 2,643,201 8,817,647
2007 2,601,850 8,388,788
2006 2,567,168 7,976,526
2005 2,536,407 7,590,143
2004 2,508,412 7,233,041
2003 2,480,374 6,903,127
2002 2,449,027 6,596,806
2001 2,417,751 6,308,391
2000 2,388,299 6,032,267
1999 2,356,813 5,771,628
1998 2,323,809 5,620,068
1997 2,291,750 5,509,136
1996 2,259,507 5,356,925
1995 2,224,945 5,225,836
1994 2,189,395 5,071,184
1993 2,165,130 4,956,002
1992 2,167,790 4,909,749
1991 2,165,342 4,836,677
1990 2,098,710 4,737,633
1989 2,124,185 4,713,229
1988 2,076,322 4,848,029
1987 2,022,800 4,962,395
1986 1,970,965 4,921,240
1985 1,921,514 4,834,296
1984 1,874,349 4,750,627
1983 1,829,092 4,661,574
1982 1,785,364 4,557,686
1981 1,742,857 4,447,272
1980 1,701,335 4,339,030
1979 1,660,659 4,232,605
1978 1,619,468 4,127,657
1977 1,576,245 4,024,032
1976 1,531,945 3,921,910
1975 1,488,296 3,821,494
1974 1,446,050 3,723,259
1973 1,405,502 3,627,383
1972 1,366,821 3,542,497
1971 1,330,071 3,468,646
1970 1,295,272 3,409,614
1969 1,262,284 3,365,533
1968 1,229,930 3,321,528
1967 1,196,996 3,277,648
1966 1,163,754 3,236,423
1965 1,131,177 3,189,835
1964 1,100,234 3,129,918
1963 1,071,362 3,072,669
1962 1,041,444 3,024,308
1961 1,009,284 2,976,724
1960 977,595 2,931,559

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/south-sudan | CC BY

From 2006 to 2016, the population of Mongolia increased by 521,688 people (a 20.3% growth), while South Sudan gained 2,853,576 people (a 35.8% growth).

For the next 10 years, from 2016 to 2026, Mongolia gained 541,888 people (a 17.5% growth), while South Sudan's population increased by 1,734,946 people (a 16% growth).

Mongolia was ranked 137th most populous country in 2006 and is 132nd in 2026. South Sudan was ranked 92nd in 2006 and ranked 80th 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 South Sudan will increase by 46.7% to 18,427,690 people and rank change from 80th to 78th.

Mongolia is projected to reach its peak in 2100 at 5.63M people compared to the peak of 24.1M people in 2100 for South Sudan.

Population growth rate by year

Mongolia
Factual

Projection
South Sudan
Factual

Projection
1x
Year Growth rate
Mongolia South Sudan
2100 0.11% 0.02%
2099 0.14% 0.07%
2098 0.16% -0.008%
2097 0.17% 0.04%
2096 0.2% 0.03%
2095 0.2% -0.006%
2094 0.22% 0.04%
2093 0.24% 0.08%
2092 0.24% 0.08%
2091 0.26% 0.09%
2090 0.28% 0.17%
2089 0.29% 0.19%
2088 0.29% 0.15%
2087 0.29% 0.23%
2086 0.32% 0.19%
2085 0.32% 0.3%
2084 0.34% 0.29%
2083 0.34% 0.33%
2082 0.35% 0.32%
2081 0.37% 0.32%
2080 0.39% 0.42%
2079 0.41% 0.42%
2078 0.4% 0.48%
2077 0.42% 0.43%
2076 0.43% 0.52%
2075 0.44% 0.63%
2074 0.45% 0.63%
2073 0.45% 0.64%
2072 0.46% 0.68%
2071 0.47% 0.62%
2070 0.46% 0.67%
2069 0.48% 0.8%
2068 0.48% 0.77%
2067 0.5% 0.77%
2066 0.5% 0.84%
2065 0.49% 0.83%
2064 0.49% 0.84%
2063 0.5% 0.87%
2062 0.5% 0.85%
2061 0.53% 0.87%
2060 0.53% 0.97%
2059 0.54% 0.93%
2058 0.58% 0.98%
2057 0.59% 0.99%
2056 0.61% 1%
2055 0.65% 1.07%
2054 0.68% 1.03%
2053 0.71% 1.17%
2052 0.75% 1.11%
2051 0.77% 1.08%
2050 0.83% 1.12%
2049 0.86% 1.16%
2048 0.9% 1.21%
2047 0.94% 1.29%
2046 0.98% 1.29%
2045 1% 1.36%
2044 1.01% 1.38%
2043 1.04% 1.46%
2042 1.05% 1.52%
2041 1.05% 1.57%
2040 1.05% 1.59%
2039 1.04% 1.68%
2038 1.04% 1.72%
2037 1.02% 1.81%
2036 1% 1.86%
2035 1% 1.87%
2034 0.98% 1.86%
2033 0.97% 1.94%
2032 0.95% 2.01%
2031 0.97% 1.97%
2030 0.99% 1.96%
2029 1.02% 2%
2028 1.06% 2%
2027 1.1% 2.04%
2026 1.16% 2.02%
2025 1.25% 2.05%
2024 1.25% 4.01%
2023 1.38% 4.19%
2022 1.48% 1.43%
2021 1.7% 1.56%
2020 1.82% 2.64%
2019 1.85% 2.97%
2018 1.88% -1.33%
2017 1.94% -5.27%
2016 2.05% -2.5%
2015 2.15% -1.13%
2014 2.21% 0.62%
2013 2.09% 3.81%
2012 1.92% 4.55%
2011 1.74% 5.56%
2010 1.77% 5.44%
2009 1.81% 4.83%
2008 1.59% 5.11%
2007 1.35% 5.17%
2006 1.21% 5.09%
2005 1.12% 4.94%
2004 1.13% 4.78%
2003 1.28% 4.64%
2002 1.29% 4.57%
2001 1.23% 4.58%
2000 1.34% 4.52%
1999 1.42% 2.7%
1998 1.4% 2.01%
1997 1.43% 2.84%
1996 1.55% 2.51%
1995 1.62% 3.05%
1994 1.12% 2.32%
1993 -0.12% 0.94%
1992 0.11% 1.51%
1991 3.17% 2.09%
1990 -1.2% 0.52%
1989 2.31% -2.78%
1988 2.65% -2.3%
1987 2.63% 0.84%
1986 2.57% 1.8%
1985 2.52% 1.76%
1984 2.47% 1.91%
1983 2.45% 2.28%
1982 2.44% 2.48%
1981 2.44% 2.49%
1980 2.45% 2.51%
1979 2.54% 2.54%
1978 2.74% 2.58%
1977 2.89% 2.6%
1976 2.93% 2.63%
1975 2.92% 2.64%
1974 2.88% 2.64%
1973 2.83% 2.4%
1972 2.76% 2.13%
1971 2.69% 1.73%
1970 2.61% 1.31%
1969 2.63% 1.32%
1968 2.75% 1.34%
1967 2.86% 1.27%
1966 2.88% 1.46%
1965 2.81% 1.91%
1964 2.69% 1.86%
1963 2.87% 1.6%
1962 3.19% 1.6%
1961 3.24% 1.54%

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/south-sudan | CC BY

In 2025, the population of Mongolia grew by 1.25%, while South Sudan's population grew by 2.05%.

Live population counters

Mongolia South Sudan
Current population
3630744
12565048
Population rank 132/197 80/197
Percent of world population 0.04% 0.15%
One net population change
11.9 minutes
2.15 minutes
One birth every
8.82 minutes
1.51 minutes
One death every
27.1 minutes
4.48 minutes
Daily growth/decline +121 +672
Annual growth/decline +44,190 +245,380
Annual growth/decline rate +1.25% +2.05%
Population growth rate rank 81/197 48/197
One migration net change every
4.63 days
1.43 hours
Annual migration change +79 +6,145
Net migration rank 74/196 50/196
Foreign-born residents 22,589 914,001
Foreign-born residents rank 169/195 62/195
Foreign-born share of population 0.6% 7.7%
Foreign-born share rank 171/195 77/195

Natural population change vs migration

Mongolia
Natural

Migration
South Sudan
Natural

Migration
1x
Year Population change
Mongolia South Sudan
Natural Migration Natural Migration
2025 - 79 - 6,145
2024 40,182 83 231,714 15,374
2023 46,995 0 217,966 455,000
2022 47,730 0 211,166 40,259
2021 52,109 0 213,567 -154,359
2020 60,888 0 212,332 62,935
2019 61,433 8,660 209,708 65,198
2018 60,635 7,811 168,497 157,408
2017 57,940 6,831 72,193 -670,477
2016 62,086 5,633 110,553 -654,225
2015 64,473 4,307 148,542 -159,822
2014 66,078 2,921 227,611 -471,523
2013 62,618 1,505 315,983 65,337
2012 55,942 351 312,974 125,771
2011 50,711 -505 303,181 194,325
2010 44,914 -6,444 287,409 299,402
2009 48,876 -15,007 278,859 139,129
2008 45,843 -17,277 268,268 165,557
2007 39,636 -15,220 256,546 167,350
2006 33,609 -11,934 246,706 153,926
2005 29,290 -8,924 239,272 132,869
2004 28,418 -8,148 231,877 110,182
2003 28,827 -7,986 225,822 91,951
2002 30,439 -8,934 212,014 82,847
2001 32,052 -10,244 204,108 77,856
2000 32,753 -11,241 196,055 74,227
1999 32,283 -13,481 180,721 70,271
1998 31,757 -10,315 -12,157 64,285
1997 32,403 -9,132 121,454 48,280
1996 33,741 -8,626 116,728 17,953
1995 34,473 -7,346 110,417 17,077
1994 34,711 -5,449 165,407 16,407
1993 36,924 -5,429 32,779 15,772
1992 42,437 -8,404 28,874 15,077
1991 47,884 -11,427 87,873 14,327
1990 49,443 -11,881 82,900 12,988
1989 51,420 -9,757 83,735 -130,821
1988 51,588 2,459 -125,447 -97,065
1987 51,140 1,855 5,756 -11,976
1986 50,329 354 99,502 -10,973
1985 49,944 -1,719 95,342 -9,986
1984 48,562 -2,452 90,970 -8,984
1983 46,919 -2,522 104,107 -7,986
1982 45,179 -2,132 118,641 -6,983
1981 43,588 -1,615 115,163 -5,994
1980 42,343 -1,268 112,307 -4,997
1979 41,568 -1,296 109,540 -3,997
1978 40,276 1,833 107,352 -2,998
1977 38,995 5,354 104,886 -1,997
1976 37,670 6,577 102,346 -995
1975 36,490 6,556 99,882 -395
1974 35,297 6,153 97,181 -192
1973 33,993 5,647 94,765 0
1972 32,727 4,999 74,803 193
1971 31,536 4,238 72,308 394
1970 30,558 3,263 44,776 587
1969 29,781 2,366 42,015 786
1968 29,017 3,535 44,213 995
1967 28,178 5,139 41,357 1,194
1966 27,338 5,837 38,523 1,386
1965 26,364 5,610 51,682 1,591
1964 25,317 4,599 64,786 1,785
1963 24,142 3,687 46,333 1,591
1962 22,960 9,049 47,406 1,386
1961 21,873 10,440 45,186 1,194
1960 20,726 10,334 42,945 995

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

GeoRank.org/population/mongolia/south-sudan | 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 South Sudan 68.1% is from natural causes (a gain of 1,796,238 people) and 31.9% is from migration (a loss of 842,709 people).

As of 2024, 22,589 residents or 0.6% of the population were not native-born in Mongolia, compared to 914,001 people or 7.7% in South Sudan.

Biggest cities by population

Mongolia
City Population
Ulaanbaatar 1.4M
Bulgan 12.3K
South Sudan
City Population
Juba 500K
Wau 321K
Bor 315K
Malakal 147K
Yambio 130K

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/south-sudan | 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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