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

Updated on by Georank

The latest officially reported population of Australia was 27,614,411 in 2025 vs 5,152,950 people in Costa Rica in 2025. In 2026, based on the adjusted UN estimation, the current Australia's population is 28,010,980 people compared to 5,186,356 in Costa Rica.

Population statistics:

  • Australia's population is 5.4 times bigger than Costa Rica's.
  • Australia is ranked the 55th most populous country in the world, while Costa Rica is the 126th.
  • The countries together account for 0.4% of the world: 0.34% for Australia vs 0.06% for Costa Rica.
  • For the last 10 years, Australia has had an average growth rate of +1.49% per year vs +0.71% in Costa Rica.
  • Since 2006, the population of Australia has increased from 20.5M people to 28M (37% growth), while Costa Rica has grown from 4.32M to 5.19M (20% growth).

Australia vs Costa Rica: population by year and forecast

Australia
Factual

Projection
Costa Rica
Factual

Projection
1x
Year Population
Australia Costa Rica
2100 44,268,623 3,803,678
2099 44,045,424 3,841,913
2098 43,816,219 3,880,484
2097 43,573,042 3,919,475
2096 43,335,272 3,958,826
2095 43,106,279 3,998,552
2094 42,884,039 4,038,516
2093 42,648,686 4,078,807
2092 42,410,825 4,119,351
2091 42,168,735 4,160,111
2090 41,927,939 4,200,989
2089 41,695,112 4,241,888
2088 41,454,360 4,282,758
2087 41,226,316 4,323,650
2086 41,005,658 4,364,399
2085 40,792,190 4,404,935
2084 40,580,657 4,445,179
2083 40,356,871 4,485,048
2082 40,140,558 4,524,570
2081 39,916,925 4,563,658
2080 39,703,296 4,602,126
2079 39,489,029 4,640,060
2078 39,273,623 4,677,313
2077 39,056,566 4,713,901
2076 38,845,418 4,749,678
2075 38,632,596 4,784,723
2074 38,418,045 4,819,050
2073 38,207,153 4,852,492
2072 37,999,068 4,885,078
2071 37,792,119 4,916,792
2070 37,578,242 4,947,655
2069 37,359,215 4,977,764
2068 37,138,635 5,006,939
2067 36,919,449 5,035,207
2066 36,701,629 5,062,849
2065 36,492,733 5,089,797
2064 36,290,454 5,115,866
2063 36,076,918 5,141,239
2062 35,866,124 5,165,574
2061 35,656,154 5,189,146
2060 35,450,525 5,211,857
2059 35,244,589 5,233,370
2058 35,027,089 5,253,830
2057 34,817,156 5,273,143
2056 34,607,988 5,291,310
2055 34,393,278 5,308,124
2054 34,179,940 5,323,598
2053 33,970,136 5,337,707
2052 33,760,935 5,350,263
2051 33,546,695 5,361,152
2050 33,330,712 5,370,484
2049 33,115,090 5,378,189
2048 32,887,237 5,384,366
2047 32,671,939 5,388,962
2046 32,443,408 5,391,996
2045 32,220,633 5,393,493
2044 32,001,023 5,393,407
2043 31,780,612 5,391,873
2042 31,556,888 5,388,912
2041 31,336,104 5,384,386
2040 31,119,045 5,378,629
2039 30,906,074 5,371,473
2038 30,686,214 5,362,904
2037 30,471,145 5,353,217
2036 30,247,954 5,342,317
2035 30,023,790 5,330,286
2034 29,801,152 5,317,189
2033 29,576,548 5,302,930
2032 29,349,199 5,287,714
2031 29,115,445 5,271,514
2030 28,877,548 5,254,366
2029 28,638,212 5,236,206
2028 28,388,452 5,217,031
2027 28,135,058 5,196,723
2026 27,879,933 5,175,408
2025 27,614,411 5,152,950
2024 27,194,286 5,129,910
2023 26,659,922 5,105,525
2022 26,018,721 5,081,765
2021 25,685,412 5,059,988
2020 25,649,248 5,034,320
2019 25,334,826 4,999,553
2018 24,963,258 4,957,818
2017 24,592,588 4,913,177
2016 24,190,907 4,866,998
2015 23,815,995 4,818,038
2014 23,475,686 4,767,119
2013 23,128,129 4,716,147
2012 22,733,465 4,663,934
2011 22,340,024 4,609,833
2010 22,031,750 4,555,962
2009 21,691,653 4,499,791
2008 21,249,199 4,440,056
2007 20,827,622 4,380,248
2006 20,450,966 4,321,340
2005 20,176,844 4,261,240
2004 19,932,722 4,200,078
2003 19,720,737 4,138,784
2002 19,495,210 4,075,705
2001 19,274,701 4,008,947
2000 19,028,802 3,937,739
1999 18,812,264 3,862,101
1998 18,607,584 3,782,838
1997 18,423,037 3,701,711
1996 18,224,767 3,619,013
1995 18,004,882 3,535,176
1994 17,805,468 3,451,122
1993 17,634,808 3,367,434
1992 17,478,635 3,284,258
1991 17,284,036 3,202,176
1990 17,065,128 3,121,706
1989 16,814,416 3,043,827
1988 16,532,164 2,968,103
1987 16,263,874 2,892,699
1986 16,018,350 2,817,216
1985 15,788,312 2,741,894
1984 15,579,391 2,667,595
1983 15,393,472 2,595,153
1982 15,184,247 2,524,806
1981 14,923,260 2,456,637
1980 14,692,000 2,390,633
1979 14,514,000 2,326,490
1978 14,358,000 2,264,510
1977 14,192,000 2,205,025
1976 14,033,000 2,147,774
1975 13,893,000 2,092,719
1974 13,723,000 2,039,643
1973 13,380,000 1,988,343
1972 13,177,000 1,938,248
1971 12,937,000 1,888,539
1970 12,507,000 1,838,949
1969 12,263,000 1,789,276
1968 12,009,000 1,739,731
1967 11,799,000 1,689,523
1966 11,651,000 1,638,116
1965 11,388,000 1,586,208
1964 11,167,000 1,533,960
1963 10,950,000 1,481,604
1962 10,742,000 1,429,445
1961 10,483,000 1,377,920
1960 10,276,477 1,327,496

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/australia/costa-rica | CC BY

From 2006 to 2016, the population of Australia increased by 3,739,941 people (a 18.3% growth), while Costa Rica gained 545,658 people (a 12.6% growth).

For the next 10 years, from 2016 to 2026, Australia gained 3,820,073 people (a 15.8% growth), while Costa Rica's population increased by 319,358 people (a 6.56% growth).

Australia was ranked 54th most populous country in 2006 and is 55th in 2026. Costa Rica was ranked 119th in 2006 and ranked 126th now.

The UN's World Population Prospects forecasts that in 24 years (in 2050) Australia's population will grow by 19% to 33,330,712 people with a rank change from 55th to 59th. The population of Costa Rica will increase by 3.55% to 5,370,484 people and rank change from 126th to 127th.

Australia is projected to reach its peak in 2100 at 44.3M people compared to the peak of 5.39M people in 2045 for Costa Rica.

Population growth rate by year

Australia
Factual

Projection
Costa Rica
Factual

Projection
1x
Year Growth rate
Australia Costa Rica
2100 0.51% -1%
2099 0.52% -0.99%
2098 0.56% -0.99%
2097 0.55% -0.99%
2096 0.53% -0.99%
2095 0.52% -0.99%
2094 0.55% -0.99%
2093 0.56% -0.98%
2092 0.57% -0.98%
2091 0.57% -0.97%
2090 0.56% -0.96%
2089 0.58% -0.95%
2088 0.55% -0.95%
2087 0.54% -0.93%
2086 0.52% -0.92%
2085 0.52% -0.91%
2084 0.55% -0.89%
2083 0.54% -0.87%
2082 0.56% -0.86%
2081 0.54% -0.84%
2080 0.54% -0.82%
2079 0.55% -0.8%
2078 0.56% -0.78%
2077 0.54% -0.75%
2076 0.55% -0.73%
2075 0.56% -0.71%
2074 0.55% -0.69%
2073 0.55% -0.67%
2072 0.55% -0.65%
2071 0.57% -0.62%
2070 0.59% -0.6%
2069 0.59% -0.58%
2068 0.59% -0.56%
2067 0.59% -0.55%
2066 0.57% -0.53%
2065 0.56% -0.51%
2064 0.59% -0.49%
2063 0.59% -0.47%
2062 0.59% -0.45%
2061 0.58% -0.44%
2060 0.58% -0.41%
2059 0.62% -0.39%
2058 0.6% -0.37%
2057 0.6% -0.34%
2056 0.62% -0.32%
2055 0.62% -0.29%
2054 0.62% -0.26%
2053 0.62% -0.23%
2052 0.64% -0.2%
2051 0.65% -0.17%
2050 0.65% -0.14%
2049 0.69% -0.11%
2048 0.66% -0.09%
2047 0.7% -0.06%
2046 0.69% -0.03%
2045 0.69% 0.002%
2044 0.69% 0.03%
2043 0.71% 0.05%
2042 0.7% 0.08%
2041 0.7% 0.11%
2040 0.69% 0.13%
2039 0.72% 0.16%
2038 0.71% 0.18%
2037 0.74% 0.2%
2036 0.75% 0.23%
2035 0.75% 0.25%
2034 0.76% 0.27%
2033 0.77% 0.29%
2032 0.8% 0.31%
2031 0.82% 0.33%
2030 0.84% 0.35%
2029 0.88% 0.37%
2028 0.9% 0.39%
2027 0.92% 0.41%
2026 0.96% 0.44%
2025 1.54% 0.45%
2024 2% 0.48%
2023 2.46% 0.47%
2022 1.3% 0.43%
2021 0.14% 0.51%
2020 1.24% 0.7%
2019 1.49% 0.84%
2018 1.51% 0.91%
2017 1.66% 0.95%
2016 1.57% 1.02%
2015 1.45% 1.07%
2014 1.5% 1.08%
2013 1.74% 1.12%
2012 1.76% 1.17%
2011 1.4% 1.18%
2010 1.57% 1.25%
2009 2.08% 1.35%
2008 2.02% 1.37%
2007 1.84% 1.36%
2006 1.36% 1.41%
2005 1.22% 1.46%
2004 1.07% 1.48%
2003 1.16% 1.55%
2002 1.14% 1.67%
2001 1.29% 1.81%
2000 1.15% 1.96%
1999 1.1% 2.1%
1998 1% 2.19%
1997 1.09% 2.29%
1996 1.22% 2.37%
1995 1.12% 2.44%
1994 0.97% 2.49%
1993 0.89% 2.53%
1992 1.13% 2.56%
1991 1.28% 2.58%
1990 1.49% 2.56%
1989 1.71% 2.55%
1988 1.65% 2.61%
1987 1.53% 2.68%
1986 1.46% 2.75%
1985 1.34% 2.79%
1984 1.21% 2.79%
1983 1.38% 2.79%
1982 1.75% 2.77%
1981 1.57% 2.76%
1980 1.23% 2.76%
1979 1.09% 2.74%
1978 1.17% 2.7%
1977 1.13% 2.67%
1976 1.01% 2.63%
1975 1.24% 2.6%
1974 2.56% 2.58%
1973 1.54% 2.58%
1972 1.86% 2.63%
1971 3.44% 2.7%
1970 1.99% 2.78%
1969 2.12% 2.85%
1968 1.78% 2.97%
1967 1.27% 3.14%
1966 2.31% 3.27%
1965 1.98% 3.41%
1964 1.98% 3.53%
1963 1.94% 3.65%
1962 2.47% 3.74%
1961 2.01% 3.8%

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/australia/costa-rica | CC BY

In 2025, the population of Australia grew by 1.54%, while Costa Rica's population grew by 0.45%.

Live population counters

Australia Costa Rica
Current population
28010980
5186356
Population rank 55/197 126/197
Percent of world population 0.34% 0.06%
One net population change
1.25 minutes
22.9 minutes
One birth every
1.81 minutes
10.3 minutes
One death every
2.81 minutes
18.4 minutes
Daily growth/decline +1,151 +63
Annual growth/decline +420,125 +23,040
Annual growth/decline rate +1.54% +0.45%
Population growth rate rank 68/197 134/197
One migration net change every
3.84 minutes
8.78 hours
Annual migration change +137,109 +1,000
Net migration rank 11/196 63/196
Foreign-born residents 8,111,404 628,404
Foreign-born residents rank 9/195 75/195
Foreign-born share of population 30.4% 12.2%
Foreign-born share rank 18/195 55/195

Natural population change vs migration

Australia
Natural

Migration
Costa Rica
Natural

Migration
1x
Year Population change
Australia Costa Rica
Natural Migration Natural Migration
2025 - 137,109 - 1,000
2024 103,773 138,510 22,699 967
2023 104,641 140,232 24,109 995
2022 111,881 140,972 21,409 1,006
2021 138,701 116,768 20,119 1,018
2020 133,376 44,447 29,164 1,029
2019 136,808 207,142 37,682 1,653
2018 157,269 226,412 42,469 1,673
2017 150,015 255,023 43,471 1,671
2016 152,403 254,648 45,565 1,649
2015 150,041 212,350 49,077 1,617
2014 154,940 200,177 49,559 1,589
2013 159,584 215,823 49,227 1,579
2012 161,408 235,776 52,036 1,587
2011 156,380 197,657 52,884 1,695
2010 158,628 166,752 50,803 2,357
2009 160,518 235,628 55,757 3,432
2008 155,119 275,773 56,491 3,794
2007 154,124 249,873 55,244 4,080
2006 132,931 191,985 54,177 4,321
2005 129,132 131,371 57,139 4,567
2004 115,610 110,072 55,769 4,856
2003 118,325 104,437 56,743 5,216
2002 116,971 108,852 58,388 5,812
2001 117,575 117,552 62,199 7,119
2000 119,882 111,186 64,268 8,826
1999 118,517 92,900 64,922 13,253
1998 120,949 81,310 64,788 15,556
1997 121,592 67,661 64,954 16,954
1996 125,751 82,965 66,094 17,393
1995 131,436 80,456 67,585 16,609
1994 131,761 51,941 68,336 15,587
1993 137,551 23,833 69,016 14,431
1992 139,829 40,767 69,830 13,069
1991 138,273 68,847 70,506 10,757
1990 143,347 100,093 71,727 7,949
1989 127,789 144,042 72,327 3,758
1988 127,298 153,330 72,944 2,414
1987 128,484 136,421 73,188 2,267
1986 123,342 113,061 73,211 2,302
1985 143,674 98,327 72,776 2,357
1984 123,077 79,617 71,062 2,402
1983 130,844 73,251 68,972 2,449
1982 126,030 111,722 66,826 2,453
1981 125,356 121,921 64,632 2,431
1980 117,536 89,189 62,561 2,387
1979 116,112 52,137 60,984 2,349
1978 116,299 45,832 58,327 2,296
1977 117,793 44,946 56,122 2,228
1976 115,070 32,792 54,019 2,129
1975 123,648 25,336 51,979 1,992
1974 128,996 56,167 50,349 1,839
1973 136,476 62,928 48,943 1,468
1972 155,488 54,895 48,417 1,366
1971 165,593 223,991 48,341 1,296
1970 145,081 256,295 48,398 1,137
1969 143,477 108,770 48,790 1,017
1968 132,099 100,963 48,361 939
1967 126,249 80,904 50,193 926
1966 126,996 110,864 50,755 930
1965 122,990 118,891 51,196 932
1964 128,420 91,588 51,435 934
1963 140,161 73,237 51,403 938
1962 143,943 58,315 51,046 934
1961 150,955 64,495 50,149 924
1960 141,816 85,707 48,857 910

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

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

Over the last 10 years, 43.5% of the population change in Australia is from natural causes (a gain of 1,338,908 people) and 56.5% is from migration (a gain of 1,736,504 people). In Costa Rica 96.2% is from natural causes (a gain of 335,764 people) and 3.8% is from migration (a gain of 13,278 people).

As of 2024, 8,111,404 residents or 30.4% of the population were not native-born in Australia, compared to 628,404 people or 12.2% in Costa Rica.

Biggest cities by population

Australia
City Population
Sydney 5.45M
Melbourne 5.35M
Brisbane 2.71M
Perth 2.14M
Adelaide 1.39M
Gold Coast 608K
Canberra 381K
Sunshine Coast 284K
Wollongong 262K
Ipswich 233K
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

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/australia/costa-rica | 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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