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

Updated on by Georank

The latest officially reported population of Mongolia was 3,568,978 in 2025 vs 2,130,986 people in Slovenia in 2025. In 2026, based on the adjusted UN estimation, the current Mongolia's population is 3,630,744 people compared to 2,128,778 in Slovenia.

Population statistics:

  • Mongolia's population is 1.71 times bigger than Slovenia's.
  • Mongolia is ranked the 132nd most populous country in the world, while Slovenia is the 147th.
  • The countries together account for 0.07% of the world: 0.04% for Mongolia vs 0.03% for Slovenia.
  • For the last 10 years, Mongolia has had an average growth rate of +1.71% per year vs +0.3% in Slovenia.
  • Since 2006, the population of Mongolia has increased from 2.57M people to 3.63M (41.4% growth), while Slovenia has grown from 2.01M to 2.13M (6.07% growth).

Mongolia vs Slovenia: population by year and forecast

Mongolia
Factual

Projection
Slovenia
Factual

Projection
1x
Year Population
Mongolia Slovenia
2100 5,630,532 1,644,125
2099 5,624,298 1,648,345
2098 5,616,442 1,652,436
2097 5,607,739 1,656,808
2096 5,598,366 1,661,055
2095 5,587,141 1,665,286
2094 5,575,743 1,669,464
2093 5,563,600 1,673,724
2092 5,550,506 1,677,938
2091 5,537,031 1,682,129
2090 5,522,419 1,686,674
2089 5,507,083 1,691,063
2088 5,491,226 1,695,484
2087 5,475,425 1,700,115
2086 5,459,661 1,705,042
2085 5,442,388 1,709,916
2084 5,424,928 1,714,895
2083 5,406,747 1,720,145
2082 5,388,623 1,725,470
2081 5,369,593 1,731,075
2080 5,349,817 1,737,192
2079 5,329,240 1,743,318
2078 5,307,283 1,749,967
2077 5,286,383 1,756,612
2076 5,264,220 1,763,483
2075 5,241,700 1,770,727
2074 5,218,897 1,778,405
2073 5,195,622 1,786,591
2072 5,172,532 1,794,570
2071 5,149,066 1,802,890
2070 5,124,853 1,811,432
2069 5,101,195 1,820,576
2068 5,077,035 1,829,837
2067 5,052,818 1,838,874
2066 5,027,552 1,848,063
2065 5,002,655 1,857,701
2064 4,978,185 1,867,621
2063 4,953,806 1,877,265
2062 4,929,364 1,886,945
2061 4,904,690 1,896,873
2060 4,878,877 1,907,096
2059 4,852,963 1,917,040
2058 4,826,761 1,926,374
2057 4,799,120 1,936,340
2056 4,771,151 1,945,710
2055 4,742,184 1,955,123
2054 4,711,735 1,964,235
2053 4,679,745 1,972,942
2052 4,646,658 1,981,547
2051 4,612,090 1,989,616
2050 4,576,701 1,997,469
2049 4,539,215 2,004,847
2048 4,500,638 2,011,668
2047 4,460,511 2,018,540
2046 4,419,188 2,025,170
2045 4,376,222 2,031,795
2044 4,333,010 2,038,314
2043 4,289,776 2,044,630
2042 4,245,757 2,050,809
2041 4,201,838 2,056,524
2040 4,158,320 2,061,772
2039 4,115,023 2,067,224
2038 4,072,646 2,072,439
2037 4,030,644 2,078,235
2036 3,989,867 2,083,743
2035 3,950,239 2,089,024
2034 3,911,316 2,093,994
2033 3,873,353 2,099,177
2032 3,836,311 2,104,208
2031 3,800,027 2,109,288
2030 3,763,374 2,114,024
2029 3,726,490 2,118,491
2028 3,688,767 2,122,680
2027 3,650,012 2,125,958
2026 3,610,395 2,128,778
2025 3,568,978 2,130,986
2024 3,524,788 2,127,400
2023 3,481,145 2,120,461
2022 3,433,748 2,112,076
2021 3,383,741 2,108,079
2020 3,327,204 2,102,419
2019 3,267,673 2,088,385
2018 3,208,189 2,073,894
2017 3,148,917 2,066,388
2016 3,088,856 2,065,042
2015 3,026,864 2,063,531
2014 2,963,113 2,061,980
2013 2,899,011 2,059,953
2012 2,839,705 2,057,159
2011 2,786,317 2,052,843
2010 2,738,622 2,048,583
2009 2,691,115 2,039,669
2008 2,643,201 2,021,316
2007 2,601,850 2,018,122
2006 2,567,168 2,006,868
2005 2,536,407 2,000,474
2004 2,508,412 1,997,012
2003 2,480,374 1,995,733
2002 2,449,027 1,994,530
2001 2,417,751 1,992,060
2000 2,388,299 1,988,925
1999 2,356,813 1,983,045
1998 2,323,809 1,981,629
1997 2,291,750 1,985,956
1996 2,259,507 1,988,628
1995 2,224,945 1,989,872
1994 2,189,395 1,989,443
1993 2,165,130 1,991,746
1992 2,167,790 1,996,498
1991 2,165,342 1,999,429
1990 2,098,710 1,998,161
1989 2,124,185 1,996,351
1988 2,076,322 1,995,196
1987 2,022,800 1,989,776
1986 1,970,965 1,965,964
1985 1,921,514 1,941,641
1984 1,874,349 1,932,154
1983 1,829,092 1,922,321
1982 1,785,364 1,910,334
1981 1,742,857 1,906,531
1980 1,701,335 1,901,315
1979 1,660,659 1,882,599
1978 1,619,468 1,862,548
1977 1,576,245 1,842,377
1976 1,531,945 1,820,249
1975 1,488,296 1,793,581
1974 1,446,050 1,776,132
1973 1,405,502 1,766,697
1972 1,366,821 1,752,233
1971 1,330,071 1,738,335
1970 1,295,272 1,724,891
1969 1,262,284 1,713,874
1968 1,229,930 1,704,546
1967 1,196,996 1,689,528
1966 1,163,754 1,669,905
1965 1,131,177 1,649,160
1964 1,100,234 1,632,114
1963 1,071,362 1,616,971
1962 1,041,444 1,603,649
1961 1,009,284 1,594,131
1960 977,595 1,584,720

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/slovenia | CC BY

From 2006 to 2016, the population of Mongolia increased by 521,688 people (a 20.3% growth), while Slovenia gained 58,174 people (a 2.9% growth).

For the next 10 years, from 2016 to 2026, Mongolia gained 541,888 people (a 17.5% growth), while Slovenia's population increased by 63,736 people (a 3.09% growth).

Mongolia was ranked 137th most populous country in 2006 and is 132nd in 2026. Slovenia was ranked 141st in 2006 and ranked 147th 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 Slovenia will decrease by 6.17% to 1,997,469 people and will still be ranked 147th.

Mongolia is projected to reach its peak in 2100 at 5.63M people, while Slovenia's population already peaked in 2025 at 2.13M people and is projected to decrease to 1.64M people by 2100.

Population growth rate by year

Mongolia
Factual

Projection
Slovenia
Factual

Projection
1x
Year Growth rate
Mongolia Slovenia
2100 0.11% -0.26%
2099 0.14% -0.25%
2098 0.16% -0.26%
2097 0.17% -0.26%
2096 0.2% -0.25%
2095 0.2% -0.25%
2094 0.22% -0.25%
2093 0.24% -0.25%
2092 0.24% -0.25%
2091 0.26% -0.27%
2090 0.28% -0.26%
2089 0.29% -0.26%
2088 0.29% -0.27%
2087 0.29% -0.29%
2086 0.32% -0.29%
2085 0.32% -0.29%
2084 0.34% -0.31%
2083 0.34% -0.31%
2082 0.35% -0.32%
2081 0.37% -0.35%
2080 0.39% -0.35%
2079 0.41% -0.38%
2078 0.4% -0.38%
2077 0.42% -0.39%
2076 0.43% -0.41%
2075 0.44% -0.43%
2074 0.45% -0.46%
2073 0.45% -0.44%
2072 0.46% -0.46%
2071 0.47% -0.47%
2070 0.46% -0.5%
2069 0.48% -0.51%
2068 0.48% -0.49%
2067 0.5% -0.5%
2066 0.5% -0.52%
2065 0.49% -0.53%
2064 0.49% -0.51%
2063 0.5% -0.51%
2062 0.5% -0.52%
2061 0.53% -0.54%
2060 0.53% -0.52%
2059 0.54% -0.48%
2058 0.58% -0.51%
2057 0.59% -0.48%
2056 0.61% -0.48%
2055 0.65% -0.46%
2054 0.68% -0.44%
2053 0.71% -0.43%
2052 0.75% -0.41%
2051 0.77% -0.39%
2050 0.83% -0.37%
2049 0.86% -0.34%
2048 0.9% -0.34%
2047 0.94% -0.33%
2046 0.98% -0.33%
2045 1% -0.32%
2044 1.01% -0.31%
2043 1.04% -0.3%
2042 1.05% -0.28%
2041 1.05% -0.25%
2040 1.05% -0.26%
2039 1.04% -0.25%
2038 1.04% -0.28%
2037 1.02% -0.26%
2036 1% -0.25%
2035 1% -0.24%
2034 0.98% -0.25%
2033 0.97% -0.24%
2032 0.95% -0.24%
2031 0.97% -0.22%
2030 0.99% -0.21%
2029 1.02% -0.2%
2028 1.06% -0.15%
2027 1.1% -0.13%
2026 1.16% -0.1%
2025 1.25% 0.17%
2024 1.25% 0.33%
2023 1.38% 0.4%
2022 1.48% 0.19%
2021 1.7% 0.27%
2020 1.82% 0.67%
2019 1.85% 0.7%
2018 1.88% 0.36%
2017 1.94% 0.07%
2016 2.05% 0.07%
2015 2.15% 0.08%
2014 2.21% 0.1%
2013 2.09% 0.14%
2012 1.92% 0.21%
2011 1.74% 0.21%
2010 1.77% 0.44%
2009 1.81% 0.91%
2008 1.59% 0.16%
2007 1.35% 0.56%
2006 1.21% 0.32%
2005 1.12% 0.17%
2004 1.13% 0.06%
2003 1.28% 0.06%
2002 1.29% 0.12%
2001 1.23% 0.16%
2000 1.34% 0.3%
1999 1.42% 0.07%
1998 1.4% -0.22%
1997 1.43% -0.13%
1996 1.55% -0.06%
1995 1.62% 0.02%
1994 1.12% -0.12%
1993 -0.12% -0.24%
1992 0.11% -0.15%
1991 3.17% 0.06%
1990 -1.2% 0.09%
1989 2.31% 0.06%
1988 2.65% 0.27%
1987 2.63% 1.21%
1986 2.57% 1.25%
1985 2.52% 0.49%
1984 2.47% 0.51%
1983 2.45% 0.63%
1982 2.44% 0.2%
1981 2.44% 0.27%
1980 2.45% 0.99%
1979 2.54% 1.08%
1978 2.74% 1.09%
1977 2.89% 1.22%
1976 2.93% 1.49%
1975 2.92% 0.98%
1974 2.88% 0.53%
1973 2.83% 0.83%
1972 2.76% 0.8%
1971 2.69% 0.78%
1970 2.61% 0.64%
1969 2.63% 0.55%
1968 2.75% 0.89%
1967 2.86% 1.18%
1966 2.88% 1.26%
1965 2.81% 1.04%
1964 2.69% 0.94%
1963 2.87% 0.83%
1962 3.19% 0.6%
1961 3.24% 0.59%

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/slovenia | CC BY

In 2025, the population of Mongolia grew by 1.25%, while Slovenia's population grew by 0.17%.

Live population counters

Mongolia Slovenia
Current population
3630744
2128778
Population rank 132/197 147/197
Percent of world population 0.04% 0.03%
One net population change
11.9 minutes
2.45 hours
One birth every
8.82 minutes
31.3 minutes
One death every
27.1 minutes
24.5 minutes
Daily growth/decline +121 +10
Annual growth/decline +44,190 +3,586
Annual growth/decline rate +1.25% +0.17%
Population growth rate rank 81/197 153/197
One migration net change every
4.63 days
3.24 hours
Annual migration change +79 +2,711
Net migration rank 74/196 55/196
Foreign-born residents 22,589 315,122
Foreign-born residents rank 169/195 97/195
Foreign-born share of population 0.6% 14.9%
Foreign-born share rank 171/195 44/195

Natural population change vs migration

Mongolia
Natural

Migration
Slovenia
Natural

Migration
1x
Year Population change
Mongolia Slovenia
Natural Migration Natural Migration
2025 - 79 - 2,711
2024 40,182 83 -4,680 3,319
2023 46,995 0 -4,665 5,339
2022 47,730 0 -4,858 9,014
2021 52,109 0 -4,216 2,477
2020 60,888 0 -5,256 28,514
2019 61,433 8,660 -1,254 16,352
2018 60,635 7,811 -1,037 14,640
2017 57,940 6,831 -207 1,359
2016 62,086 5,633 826 1,195
2015 64,473 4,307 826 712
2014 66,078 2,921 2,268 -70
2013 62,618 1,505 1,648 639
2012 55,942 351 2,674 1,117
2011 50,711 -505 3,285 2,190
2010 44,914 -6,444 3,687 -410
2009 48,876 -15,007 3,060 11,594
2008 45,843 -17,277 3,437 2,971
2007 39,636 -15,220 1,211 14,191
2006 33,609 -11,934 602 6,081
2005 29,290 -8,924 -600 6,317
2004 28,418 -8,148 -599 1,759
2003 28,827 -7,986 -1,996 3,218
2002 30,439 -8,934 -1,197 1,975
2001 32,052 -10,244 -996 4,527
2000 32,753 -11,241 -398 3,124
1999 32,283 -13,481 -1,388 10,291
1998 31,757 -10,315 -1,189 -5,280
1997 32,403 -9,132 -794 -1,298
1996 33,741 -8,626 0 -2,456
1995 34,473 -7,346 0 356
1994 34,711 -5,449 199 -153
1993 36,924 -5,429 -199 -4,641
1992 42,437 -8,404 598 -5,547
1991 47,884 -11,427 2,199 -3,325
1990 49,443 -11,881 3,797 618
1989 51,420 -9,757 4,592 -2,718
1988 51,588 2,459 5,986 -3,023
1987 51,140 1,855 5,771 2,972
1986 50,329 354 6,094 32,700
1985 49,944 -1,719 6,213 3,404
1984 48,562 -2,452 5,990 3,280
1983 46,919 -2,522 6,343 3,613
1982 45,179 -2,132 9,170 -8,695
1981 43,588 -1,615 10,485 -5,016
1980 42,343 -1,268 11,027 3,128
1979 41,568 -1,296 12,614 2,107
1978 40,276 1,833 11,920 2,113
1977 38,995 5,354 12,160 2,584
1976 37,670 6,577 12,196 2,226
1975 36,490 6,556 11,658 2,421
1974 35,297 6,153 11,367 3,145
1973 33,993 5,647 11,837 2,175
1972 32,727 4,999 10,513 2,924
1971 31,536 4,238 10,951 2,286
1970 30,558 3,263 10,004 260
1969 29,781 2,366 9,427 685
1968 29,017 3,535 11,250 438
1967 28,178 5,139 13,516 -192
1966 27,338 5,837 15,697 -1,262
1965 26,364 5,610 14,513 -1,421
1964 25,317 4,599 12,567 -349
1963 24,142 3,687 14,068 -180
1962 22,960 9,049 13,150 148
1961 21,873 10,440 14,985 -306
1960 20,726 10,334 12,678 -929

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

GeoRank.org/population/mongolia/slovenia | 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 Slovenia 22.8% is from natural causes (a loss of 24,521 people) and 77.2% is from migration (a gain of 82,921 people).

As of 2024, 22,589 residents or 0.6% of the population were not native-born in Mongolia, compared to 315,122 people or 14.9% in Slovenia.

Biggest cities by population

Mongolia
City Population
Ulaanbaatar 1.4M
Bulgan 12.3K
Slovenia
City Population
Ljubljana 284K
Maribor 114K
Kranj 37.6K
Celje 37.1K
Velenje 25.6K
Novo Mesto 24.2K
Nova Gorica 13K
Izola 11.7K
Murska Sobota 11.2K
Piran 3.79K

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/slovenia | 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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