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Population in Costa Rica compared to Mongolia: Trends, Charts, Rankings

Updated on by Georank

The latest officially reported population of Costa Rica was 5,152,950 in 2025 vs 3,568,978 people in Mongolia in 2025. In 2026, based on the adjusted UN estimation, the current Costa Rica's population is 5,186,356 people compared to 3,630,744 in Mongolia.

Population statistics:

  • Costa Rica's population is 1.43 times bigger than Mongolia's.
  • Costa Rica is ranked the 126th most populous country in the world, while Mongolia is the 132nd.
  • The countries together account for 0.11% of the world: 0.06% for Costa Rica vs 0.04% for Mongolia.
  • For the last 10 years, Costa Rica has had an average growth rate of +0.71% per year vs +1.71% in Mongolia.
  • Since 2006, the population of Costa Rica has increased from 4.32M people to 5.19M (20% growth), while Mongolia has grown from 2.57M to 3.63M (41.4% growth).

Costa Rica vs Mongolia: population by year and forecast

Costa Rica
Factual

Projection
Mongolia
Factual

Projection
1x
Year Population
Costa Rica Mongolia
2100 3,803,678 5,630,532
2099 3,841,913 5,624,298
2098 3,880,484 5,616,442
2097 3,919,475 5,607,739
2096 3,958,826 5,598,366
2095 3,998,552 5,587,141
2094 4,038,516 5,575,743
2093 4,078,807 5,563,600
2092 4,119,351 5,550,506
2091 4,160,111 5,537,031
2090 4,200,989 5,522,419
2089 4,241,888 5,507,083
2088 4,282,758 5,491,226
2087 4,323,650 5,475,425
2086 4,364,399 5,459,661
2085 4,404,935 5,442,388
2084 4,445,179 5,424,928
2083 4,485,048 5,406,747
2082 4,524,570 5,388,623
2081 4,563,658 5,369,593
2080 4,602,126 5,349,817
2079 4,640,060 5,329,240
2078 4,677,313 5,307,283
2077 4,713,901 5,286,383
2076 4,749,678 5,264,220
2075 4,784,723 5,241,700
2074 4,819,050 5,218,897
2073 4,852,492 5,195,622
2072 4,885,078 5,172,532
2071 4,916,792 5,149,066
2070 4,947,655 5,124,853
2069 4,977,764 5,101,195
2068 5,006,939 5,077,035
2067 5,035,207 5,052,818
2066 5,062,849 5,027,552
2065 5,089,797 5,002,655
2064 5,115,866 4,978,185
2063 5,141,239 4,953,806
2062 5,165,574 4,929,364
2061 5,189,146 4,904,690
2060 5,211,857 4,878,877
2059 5,233,370 4,852,963
2058 5,253,830 4,826,761
2057 5,273,143 4,799,120
2056 5,291,310 4,771,151
2055 5,308,124 4,742,184
2054 5,323,598 4,711,735
2053 5,337,707 4,679,745
2052 5,350,263 4,646,658
2051 5,361,152 4,612,090
2050 5,370,484 4,576,701
2049 5,378,189 4,539,215
2048 5,384,366 4,500,638
2047 5,388,962 4,460,511
2046 5,391,996 4,419,188
2045 5,393,493 4,376,222
2044 5,393,407 4,333,010
2043 5,391,873 4,289,776
2042 5,388,912 4,245,757
2041 5,384,386 4,201,838
2040 5,378,629 4,158,320
2039 5,371,473 4,115,023
2038 5,362,904 4,072,646
2037 5,353,217 4,030,644
2036 5,342,317 3,989,867
2035 5,330,286 3,950,239
2034 5,317,189 3,911,316
2033 5,302,930 3,873,353
2032 5,287,714 3,836,311
2031 5,271,514 3,800,027
2030 5,254,366 3,763,374
2029 5,236,206 3,726,490
2028 5,217,031 3,688,767
2027 5,196,723 3,650,012
2026 5,175,408 3,610,395
2025 5,152,950 3,568,978
2024 5,129,910 3,524,788
2023 5,105,525 3,481,145
2022 5,081,765 3,433,748
2021 5,059,988 3,383,741
2020 5,034,320 3,327,204
2019 4,999,553 3,267,673
2018 4,957,818 3,208,189
2017 4,913,177 3,148,917
2016 4,866,998 3,088,856
2015 4,818,038 3,026,864
2014 4,767,119 2,963,113
2013 4,716,147 2,899,011
2012 4,663,934 2,839,705
2011 4,609,833 2,786,317
2010 4,555,962 2,738,622
2009 4,499,791 2,691,115
2008 4,440,056 2,643,201
2007 4,380,248 2,601,850
2006 4,321,340 2,567,168
2005 4,261,240 2,536,407
2004 4,200,078 2,508,412
2003 4,138,784 2,480,374
2002 4,075,705 2,449,027
2001 4,008,947 2,417,751
2000 3,937,739 2,388,299
1999 3,862,101 2,356,813
1998 3,782,838 2,323,809
1997 3,701,711 2,291,750
1996 3,619,013 2,259,507
1995 3,535,176 2,224,945
1994 3,451,122 2,189,395
1993 3,367,434 2,165,130
1992 3,284,258 2,167,790
1991 3,202,176 2,165,342
1990 3,121,706 2,098,710
1989 3,043,827 2,124,185
1988 2,968,103 2,076,322
1987 2,892,699 2,022,800
1986 2,817,216 1,970,965
1985 2,741,894 1,921,514
1984 2,667,595 1,874,349
1983 2,595,153 1,829,092
1982 2,524,806 1,785,364
1981 2,456,637 1,742,857
1980 2,390,633 1,701,335
1979 2,326,490 1,660,659
1978 2,264,510 1,619,468
1977 2,205,025 1,576,245
1976 2,147,774 1,531,945
1975 2,092,719 1,488,296
1974 2,039,643 1,446,050
1973 1,988,343 1,405,502
1972 1,938,248 1,366,821
1971 1,888,539 1,330,071
1970 1,838,949 1,295,272
1969 1,789,276 1,262,284
1968 1,739,731 1,229,930
1967 1,689,523 1,196,996
1966 1,638,116 1,163,754
1965 1,586,208 1,131,177
1964 1,533,960 1,100,234
1963 1,481,604 1,071,362
1962 1,429,445 1,041,444
1961 1,377,920 1,009,284
1960 1,327,496 977,595

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/costa-rica/mongolia | CC BY

From 2006 to 2016, the population of Costa Rica increased by 545,658 people (a 12.6% growth), while Mongolia gained 521,688 people (a 20.3% growth).

For the next 10 years, from 2016 to 2026, Costa Rica gained 319,358 people (a 6.56% growth), while Mongolia's population increased by 541,888 people (a 17.5% growth).

Costa Rica was ranked 119th most populous country in 2006 and is 126th 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) Costa Rica's population will grow by 3.55% to 5,370,484 people with a rank change from 126th to 127th. The population of Mongolia will increase by 26.1% to 4,576,701 people and rank change from 132nd to 130th.

Costa Rica is projected to reach its peak in 2045 at 5.39M people compared to the peak of 5.63M people in 2100 for Mongolia.

Population growth rate by year

Costa Rica
Factual

Projection
Mongolia
Factual

Projection
1x
Year Growth rate
Costa Rica Mongolia
2100 -1% 0.11%
2099 -0.99% 0.14%
2098 -0.99% 0.16%
2097 -0.99% 0.17%
2096 -0.99% 0.2%
2095 -0.99% 0.2%
2094 -0.99% 0.22%
2093 -0.98% 0.24%
2092 -0.98% 0.24%
2091 -0.97% 0.26%
2090 -0.96% 0.28%
2089 -0.95% 0.29%
2088 -0.95% 0.29%
2087 -0.93% 0.29%
2086 -0.92% 0.32%
2085 -0.91% 0.32%
2084 -0.89% 0.34%
2083 -0.87% 0.34%
2082 -0.86% 0.35%
2081 -0.84% 0.37%
2080 -0.82% 0.39%
2079 -0.8% 0.41%
2078 -0.78% 0.4%
2077 -0.75% 0.42%
2076 -0.73% 0.43%
2075 -0.71% 0.44%
2074 -0.69% 0.45%
2073 -0.67% 0.45%
2072 -0.65% 0.46%
2071 -0.62% 0.47%
2070 -0.6% 0.46%
2069 -0.58% 0.48%
2068 -0.56% 0.48%
2067 -0.55% 0.5%
2066 -0.53% 0.5%
2065 -0.51% 0.49%
2064 -0.49% 0.49%
2063 -0.47% 0.5%
2062 -0.45% 0.5%
2061 -0.44% 0.53%
2060 -0.41% 0.53%
2059 -0.39% 0.54%
2058 -0.37% 0.58%
2057 -0.34% 0.59%
2056 -0.32% 0.61%
2055 -0.29% 0.65%
2054 -0.26% 0.68%
2053 -0.23% 0.71%
2052 -0.2% 0.75%
2051 -0.17% 0.77%
2050 -0.14% 0.83%
2049 -0.11% 0.86%
2048 -0.09% 0.9%
2047 -0.06% 0.94%
2046 -0.03% 0.98%
2045 0.002% 1%
2044 0.03% 1.01%
2043 0.05% 1.04%
2042 0.08% 1.05%
2041 0.11% 1.05%
2040 0.13% 1.05%
2039 0.16% 1.04%
2038 0.18% 1.04%
2037 0.2% 1.02%
2036 0.23% 1%
2035 0.25% 1%
2034 0.27% 0.98%
2033 0.29% 0.97%
2032 0.31% 0.95%
2031 0.33% 0.97%
2030 0.35% 0.99%
2029 0.37% 1.02%
2028 0.39% 1.06%
2027 0.41% 1.1%
2026 0.44% 1.16%
2025 0.45% 1.25%
2024 0.48% 1.25%
2023 0.47% 1.38%
2022 0.43% 1.48%
2021 0.51% 1.7%
2020 0.7% 1.82%
2019 0.84% 1.85%
2018 0.91% 1.88%
2017 0.95% 1.94%
2016 1.02% 2.05%
2015 1.07% 2.15%
2014 1.08% 2.21%
2013 1.12% 2.09%
2012 1.17% 1.92%
2011 1.18% 1.74%
2010 1.25% 1.77%
2009 1.35% 1.81%
2008 1.37% 1.59%
2007 1.36% 1.35%
2006 1.41% 1.21%
2005 1.46% 1.12%
2004 1.48% 1.13%
2003 1.55% 1.28%
2002 1.67% 1.29%
2001 1.81% 1.23%
2000 1.96% 1.34%
1999 2.1% 1.42%
1998 2.19% 1.4%
1997 2.29% 1.43%
1996 2.37% 1.55%
1995 2.44% 1.62%
1994 2.49% 1.12%
1993 2.53% -0.12%
1992 2.56% 0.11%
1991 2.58% 3.17%
1990 2.56% -1.2%
1989 2.55% 2.31%
1988 2.61% 2.65%
1987 2.68% 2.63%
1986 2.75% 2.57%
1985 2.79% 2.52%
1984 2.79% 2.47%
1983 2.79% 2.45%
1982 2.77% 2.44%
1981 2.76% 2.44%
1980 2.76% 2.45%
1979 2.74% 2.54%
1978 2.7% 2.74%
1977 2.67% 2.89%
1976 2.63% 2.93%
1975 2.6% 2.92%
1974 2.58% 2.88%
1973 2.58% 2.83%
1972 2.63% 2.76%
1971 2.7% 2.69%
1970 2.78% 2.61%
1969 2.85% 2.63%
1968 2.97% 2.75%
1967 3.14% 2.86%
1966 3.27% 2.88%
1965 3.41% 2.81%
1964 3.53% 2.69%
1963 3.65% 2.87%
1962 3.74% 3.19%
1961 3.8% 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/costa-rica/mongolia | CC BY

In 2025, the population of Costa Rica grew by 0.45%, while Mongolia's population grew by 1.25%.

Live population counters

Costa Rica Mongolia
Current population
5186356
3630744
Population rank 126/197 132/197
Percent of world population 0.06% 0.04%
One net population change
22.9 minutes
11.9 minutes
One birth every
10.3 minutes
8.82 minutes
One death every
18.4 minutes
27.1 minutes
Daily growth/decline +63 +121
Annual growth/decline +23,040 +44,190
Annual growth/decline rate +0.45% +1.25%
Population growth rate rank 134/197 81/197
One migration net change every
8.78 hours
4.63 days
Annual migration change +1,000 +79
Net migration rank 63/196 74/196
Foreign-born residents 628,404 22,589
Foreign-born residents rank 75/195 169/195
Foreign-born share of population 12.2% 0.6%
Foreign-born share rank 55/195 171/195

Natural population change vs migration

Costa Rica
Natural

Migration
Mongolia
Natural

Migration
1x
Year Population change
Costa Rica Mongolia
Natural Migration Natural Migration
2025 - 1,000 - 79
2024 22,699 967 40,182 83
2023 24,109 995 46,995 0
2022 21,409 1,006 47,730 0
2021 20,119 1,018 52,109 0
2020 29,164 1,029 60,888 0
2019 37,682 1,653 61,433 8,660
2018 42,469 1,673 60,635 7,811
2017 43,471 1,671 57,940 6,831
2016 45,565 1,649 62,086 5,633
2015 49,077 1,617 64,473 4,307
2014 49,559 1,589 66,078 2,921
2013 49,227 1,579 62,618 1,505
2012 52,036 1,587 55,942 351
2011 52,884 1,695 50,711 -505
2010 50,803 2,357 44,914 -6,444
2009 55,757 3,432 48,876 -15,007
2008 56,491 3,794 45,843 -17,277
2007 55,244 4,080 39,636 -15,220
2006 54,177 4,321 33,609 -11,934
2005 57,139 4,567 29,290 -8,924
2004 55,769 4,856 28,418 -8,148
2003 56,743 5,216 28,827 -7,986
2002 58,388 5,812 30,439 -8,934
2001 62,199 7,119 32,052 -10,244
2000 64,268 8,826 32,753 -11,241
1999 64,922 13,253 32,283 -13,481
1998 64,788 15,556 31,757 -10,315
1997 64,954 16,954 32,403 -9,132
1996 66,094 17,393 33,741 -8,626
1995 67,585 16,609 34,473 -7,346
1994 68,336 15,587 34,711 -5,449
1993 69,016 14,431 36,924 -5,429
1992 69,830 13,069 42,437 -8,404
1991 70,506 10,757 47,884 -11,427
1990 71,727 7,949 49,443 -11,881
1989 72,327 3,758 51,420 -9,757
1988 72,944 2,414 51,588 2,459
1987 73,188 2,267 51,140 1,855
1986 73,211 2,302 50,329 354
1985 72,776 2,357 49,944 -1,719
1984 71,062 2,402 48,562 -2,452
1983 68,972 2,449 46,919 -2,522
1982 66,826 2,453 45,179 -2,132
1981 64,632 2,431 43,588 -1,615
1980 62,561 2,387 42,343 -1,268
1979 60,984 2,349 41,568 -1,296
1978 58,327 2,296 40,276 1,833
1977 56,122 2,228 38,995 5,354
1976 54,019 2,129 37,670 6,577
1975 51,979 1,992 36,490 6,556
1974 50,349 1,839 35,297 6,153
1973 48,943 1,468 33,993 5,647
1972 48,417 1,366 32,727 4,999
1971 48,341 1,296 31,536 4,238
1970 48,398 1,137 30,558 3,263
1969 48,790 1,017 29,781 2,366
1968 48,361 939 29,017 3,535
1967 50,193 926 28,178 5,139
1966 50,755 930 27,338 5,837
1965 51,196 932 26,364 5,610
1964 51,435 934 25,317 4,599
1963 51,403 938 24,142 3,687
1962 51,046 934 22,960 9,049
1961 50,149 924 21,873 10,440
1960 48,857 910 20,726 10,334

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

GeoRank.org/population/costa-rica/mongolia | CC BY

Over the last 10 years, 96.2% of the population change in Costa Rica is from natural causes (a gain of 335,764 people) and 3.8% is from migration (a gain of 13,278 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, 628,404 residents or 12.2% of the population were not native-born in Costa Rica, compared to 22,589 people or 0.6% in Mongolia.

Biggest cities by population

Costa Rica
City Population
San Jose 335K
Limon 71.5K
Liberia 65.9K
Alajuela 44.4K
Puntarenas 41.5K
Cartago 22.8K
Heredia 16.7K
Tamarindo 7.13K
Santa Teresa 3K
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/costa-rica/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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