Skip to content

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

Updated on by Georank

The latest officially reported population of Comoros was 882,847 in 2025 vs 5,152,950 people in Costa Rica in 2025. In 2026, based on the adjusted UN estimation, the current Comoros' population is 907,554 people compared to 5,186,356 in Costa Rica.

Population statistics:

  • Costa Rica's population is 5.71 times bigger than Comoros'.
  • Comoros is ranked the 160th most populous country in the world, while Costa Rica is the 126th.
  • The countries together account for 0.07% of the world: 0.01% for Comoros vs 0.06% for Costa Rica.
  • For the last 10 years, Comoros has had an average growth rate of +1.98% per year vs +0.71% in Costa Rica.
  • Since 2006, the population of Comoros has increased from 605K people to 908K (50.1% growth), while Costa Rica has grown from 4.32M to 5.19M (20% growth).

Comoros vs Costa Rica: population by year and forecast

Comoros
Factual

Projection
Costa Rica
Factual

Projection
1x
Year Population
Comoros Costa Rica
2100 1,926,001 3,803,678
2099 1,920,237 3,841,913
2098 1,914,226 3,880,484
2097 1,907,753 3,919,475
2096 1,901,145 3,958,826
2095 1,894,043 3,998,552
2094 1,886,731 4,038,516
2093 1,879,280 4,078,807
2092 1,871,442 4,119,351
2091 1,863,207 4,160,111
2090 1,854,628 4,200,989
2089 1,845,770 4,241,888
2088 1,836,626 4,282,758
2087 1,827,319 4,323,650
2086 1,817,526 4,364,399
2085 1,807,595 4,404,935
2084 1,797,247 4,445,179
2083 1,786,418 4,485,048
2082 1,775,471 4,524,570
2081 1,764,356 4,563,658
2080 1,752,964 4,602,126
2079 1,741,420 4,640,060
2078 1,729,386 4,677,313
2077 1,717,157 4,713,901
2076 1,704,500 4,749,678
2075 1,691,609 4,784,723
2074 1,678,648 4,819,050
2073 1,665,451 4,852,492
2072 1,652,064 4,885,078
2071 1,638,357 4,916,792
2070 1,624,757 4,947,655
2069 1,610,830 4,977,764
2068 1,596,616 5,006,939
2067 1,582,126 5,035,207
2066 1,567,516 5,062,849
2065 1,552,831 5,089,797
2064 1,537,938 5,115,866
2063 1,522,892 5,141,239
2062 1,507,810 5,165,574
2061 1,492,305 5,189,146
2060 1,476,645 5,211,857
2059 1,460,854 5,233,370
2058 1,444,947 5,253,830
2057 1,428,887 5,273,143
2056 1,412,627 5,291,310
2055 1,396,136 5,308,124
2054 1,379,512 5,323,598
2053 1,362,718 5,337,707
2052 1,345,563 5,350,263
2051 1,328,334 5,361,152
2050 1,310,991 5,370,484
2049 1,293,638 5,378,189
2048 1,276,008 5,384,366
2047 1,258,663 5,388,962
2046 1,241,175 5,391,996
2045 1,223,576 5,393,493
2044 1,205,796 5,393,407
2043 1,188,079 5,391,873
2042 1,170,578 5,388,912
2041 1,153,033 5,384,386
2040 1,135,514 5,378,629
2039 1,117,995 5,371,473
2038 1,100,650 5,362,904
2037 1,083,380 5,353,217
2036 1,066,037 5,342,317
2035 1,048,888 5,330,286
2034 1,031,937 5,317,189
2033 1,014,960 5,302,930
2032 998,204 5,287,714
2031 981,505 5,271,514
2030 964,876 5,254,366
2029 948,286 5,236,206
2028 931,821 5,217,031
2027 915,471 5,196,723
2026 899,193 5,175,408
2025 882,847 5,152,950
2024 866,628 5,129,910
2023 850,387 5,105,525
2022 834,188 5,081,765
2021 818,174 5,059,988
2020 802,163 5,034,320
2019 786,578 4,999,553
2018 771,590 4,957,818
2017 756,669 4,913,177
2016 741,741 4,866,998
2015 726,682 4,818,038
2014 711,503 4,767,119
2013 696,192 4,716,147
2012 681,630 4,663,934
2011 668,056 4,609,833
2010 654,836 4,555,962
2009 641,947 4,499,791
2008 629,307 4,440,056
2007 616,927 4,380,248
2006 604,753 4,321,340
2005 592,677 4,261,240
2004 580,704 4,200,078
2003 569,798 4,138,784
2002 558,923 4,075,705
2001 547,220 4,008,947
2000 536,080 3,937,739
1999 525,886 3,862,101
1998 516,597 3,782,838
1997 507,777 3,701,711
1996 499,107 3,619,013
1995 490,586 3,535,176
1994 482,142 3,451,122
1993 473,682 3,367,434
1992 465,113 3,284,258
1991 455,556 3,202,176
1990 444,596 3,121,706
1989 433,103 3,043,827
1988 421,687 2,968,103
1987 410,439 2,892,699
1986 399,318 2,817,216
1985 388,352 2,741,894
1984 377,637 2,667,595
1983 367,233 2,595,153
1982 357,139 2,524,806
1981 347,382 2,456,637
1980 337,721 2,390,633
1979 327,791 2,326,490
1978 317,688 2,264,510
1977 307,579 2,205,025
1976 297,538 2,147,774
1975 287,692 2,092,719
1974 278,075 2,039,643
1973 268,820 1,988,343
1972 260,077 1,938,248
1971 251,865 1,888,539
1970 244,185 1,838,949
1969 237,001 1,789,276
1968 230,244 1,739,731
1967 223,859 1,689,523
1966 218,663 1,638,116
1965 214,967 1,586,208
1964 211,644 1,533,960
1963 208,185 1,481,604
1962 204,702 1,429,445
1961 201,201 1,377,920
1960 197,700 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/comoros/costa-rica | CC BY

From 2006 to 2016, the population of Comoros increased by 136,988 people (a 22.7% growth), while Costa Rica gained 545,658 people (a 12.6% growth).

For the next 10 years, from 2016 to 2026, Comoros gained 165,813 people (a 22.4% growth), while Costa Rica's population increased by 319,358 people (a 6.56% growth).

Comoros was ranked 163rd most populous country in 2006 and is 160th 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) Comoros' population will grow by 44.5% to 1,310,991 people with a rank change from 160th to 157th. The population of Costa Rica will increase by 3.55% to 5,370,484 people and rank change from 126th to 127th.

Comoros is projected to reach its peak in 2100 at 1.93M people compared to the peak of 5.39M people in 2045 for Costa Rica.

Population growth rate by year

Comoros
Factual

Projection
Costa Rica
Factual

Projection
1x
Year Growth rate
Comoros Costa Rica
2100 0.3% -1%
2099 0.31% -0.99%
2098 0.34% -0.99%
2097 0.35% -0.99%
2096 0.37% -0.99%
2095 0.39% -0.99%
2094 0.4% -0.99%
2093 0.42% -0.98%
2092 0.44% -0.98%
2091 0.46% -0.97%
2090 0.48% -0.96%
2089 0.5% -0.95%
2088 0.51% -0.95%
2087 0.54% -0.93%
2086 0.55% -0.92%
2085 0.58% -0.91%
2084 0.61% -0.89%
2083 0.62% -0.87%
2082 0.63% -0.86%
2081 0.65% -0.84%
2080 0.66% -0.82%
2079 0.7% -0.8%
2078 0.71% -0.78%
2077 0.74% -0.75%
2076 0.76% -0.73%
2075 0.77% -0.71%
2074 0.79% -0.69%
2073 0.81% -0.67%
2072 0.84% -0.65%
2071 0.84% -0.62%
2070 0.86% -0.6%
2069 0.89% -0.58%
2068 0.92% -0.56%
2067 0.93% -0.55%
2066 0.95% -0.53%
2065 0.97% -0.51%
2064 0.99% -0.49%
2063 1% -0.47%
2062 1.04% -0.45%
2061 1.06% -0.44%
2060 1.08% -0.41%
2059 1.1% -0.39%
2058 1.12% -0.37%
2057 1.15% -0.34%
2056 1.18% -0.32%
2055 1.21% -0.29%
2054 1.23% -0.26%
2053 1.27% -0.23%
2052 1.3% -0.2%
2051 1.32% -0.17%
2050 1.34% -0.14%
2049 1.38% -0.11%
2048 1.38% -0.09%
2047 1.41% -0.06%
2046 1.44% -0.03%
2045 1.47% 0.002%
2044 1.49% 0.03%
2043 1.5% 0.05%
2042 1.52% 0.08%
2041 1.54% 0.11%
2040 1.57% 0.13%
2039 1.58% 0.16%
2038 1.59% 0.18%
2037 1.63% 0.2%
2036 1.63% 0.23%
2035 1.64% 0.25%
2034 1.67% 0.27%
2033 1.68% 0.29%
2032 1.7% 0.31%
2031 1.72% 0.33%
2030 1.75% 0.35%
2029 1.77% 0.37%
2028 1.79% 0.39%
2027 1.81% 0.41%
2026 1.85% 0.44%
2025 1.87% 0.45%
2024 1.91% 0.48%
2023 1.94% 0.47%
2022 1.96% 0.43%
2021 2% 0.51%
2020 1.98% 0.7%
2019 1.94% 0.84%
2018 1.97% 0.91%
2017 2.01% 0.95%
2016 2.07% 1.02%
2015 2.13% 1.07%
2014 2.2% 1.08%
2013 2.14% 1.12%
2012 2.03% 1.17%
2011 2.02% 1.18%
2010 2.01% 1.25%
2009 2.01% 1.35%
2008 2.01% 1.37%
2007 2.01% 1.36%
2006 2.04% 1.41%
2005 2.06% 1.46%
2004 1.91% 1.48%
2003 1.95% 1.55%
2002 2.14% 1.67%
2001 2.08% 1.81%
2000 1.94% 1.96%
1999 1.8% 2.1%
1998 1.74% 2.19%
1997 1.74% 2.29%
1996 1.74% 2.37%
1995 1.75% 2.44%
1994 1.79% 2.49%
1993 1.84% 2.53%
1992 2.1% 2.56%
1991 2.47% 2.58%
1990 2.65% 2.56%
1989 2.71% 2.55%
1988 2.74% 2.61%
1987 2.78% 2.68%
1986 2.82% 2.75%
1985 2.84% 2.79%
1984 2.83% 2.79%
1983 2.83% 2.79%
1982 2.81% 2.77%
1981 2.86% 2.76%
1980 3.03% 2.76%
1979 3.18% 2.74%
1978 3.29% 2.7%
1977 3.37% 2.67%
1976 3.42% 2.63%
1975 3.46% 2.6%
1974 3.44% 2.58%
1973 3.36% 2.58%
1972 3.26% 2.63%
1971 3.15% 2.7%
1970 3.03% 2.78%
1969 2.93% 2.85%
1968 2.85% 2.97%
1967 2.38% 3.14%
1966 1.72% 3.27%
1965 1.57% 3.41%
1964 1.66% 3.53%
1963 1.7% 3.65%
1962 1.74% 3.74%
1961 1.77% 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/comoros/costa-rica | CC BY

In 2025, the population of Comoros grew by 1.87%, while Costa Rica's population grew by 0.45%.

Live population counters

Comoros Costa Rica
Current population
907554
5186356
Population rank 160/197 126/197
Percent of world population 0.01% 0.06%
One net population change
32.5 minutes
22.9 minutes
One birth every
21.5 minutes
10.3 minutes
One death every
1.42 hours
18.4 minutes
Daily growth/decline +44 +63
Annual growth/decline +16,219 +23,040
Annual growth/decline rate +1.87% +0.45%
Population growth rate rank 55/197 134/197
One migration net change every
4.13 hours
8.78 hours
Annual migration change -2,127 +1,000
Net migration rank 98/196 63/196
Foreign-born residents 12,449 628,404
Foreign-born residents rank 177/195 75/195
Foreign-born share of population 1.4% 12.2%
Foreign-born share rank 147/195 55/195

Natural population change vs migration

Comoros
Natural

Migration
Costa Rica
Natural

Migration
1x
Year Population change
Comoros Costa Rica
Natural Migration Natural Migration
2025 - -2,127 - 1,000
2024 18,294 -2,051 22,699 967
2023 18,247 -2,002 24,109 995
2022 18,154 -2,002 21,409 1,006
2021 17,645 -1,766 20,119 1,018
2020 17,906 -1,766 29,164 1,029
2019 17,936 -2,916 37,682 1,653
2018 17,883 -2,917 42,469 1,673
2017 17,798 -2,920 43,471 1,671
2016 17,913 -2,938 45,565 1,649
2015 17,961 -2,815 49,077 1,617
2014 17,876 -2,667 49,559 1,589
2013 17,776 -2,365 49,227 1,579
2012 17,565 -3,835 52,036 1,587
2011 17,313 -3,897 52,884 1,695
2010 16,849 -3,832 50,803 2,357
2009 16,315 -3,553 55,757 3,432
2008 15,804 -3,294 56,491 3,794
2007 15,393 -3,147 55,244 4,080
2006 15,124 -3,020 54,177 4,321
2005 14,810 -2,760 57,139 4,567
2004 14,349 -2,455 55,769 4,856
2003 14,031 -4,112 56,743 5,216
2002 13,760 -1,925 58,388 5,812
2001 13,598 -2,029 62,199 7,119
2000 13,270 -2,557 64,268 8,826
1999 13,161 -3,490 64,922 13,253
1998 13,099 -4,194 64,788 15,556
1997 13,254 -4,508 64,954 16,954
1996 13,390 -4,805 66,094 17,393
1995 13,403 -4,951 67,585 16,609
1994 13,465 -5,024 68,336 15,587
1993 13,667 -5,196 69,016 14,431
1992 13,867 -5,198 69,830 13,069
1991 13,783 -3,323 70,506 10,757
1990 13,610 -2,141 71,727 7,949
1989 13,374 -1,860 72,327 3,758
1988 13,144 -1,832 72,944 2,414
1987 12,869 -1,687 73,188 2,267
1986 12,566 -1,502 73,211 2,302
1985 12,202 -1,339 72,776 2,357
1984 11,830 -1,259 71,062 2,402
1983 11,367 -1,122 68,972 2,449
1982 11,002 -1,065 66,826 2,453
1981 10,569 -999 64,632 2,431
1980 10,095 -344 62,561 2,387
1979 9,637 468 60,984 2,349
1978 9,189 909 58,327 2,296
1977 8,750 1,377 56,122 2,228
1976 8,371 1,585 54,019 2,129
1975 7,752 1,986 51,979 1,992
1974 7,654 1,840 50,349 1,839
1973 7,328 1,684 48,943 1,468
1972 7,019 1,461 48,417 1,366
1971 6,722 1,216 48,341 1,296
1970 6,456 966 48,398 1,137
1969 6,189 769 48,790 1,017
1968 5,960 592 48,361 939
1967 5,741 465 50,193 926
1966 5,601 -1,408 50,755 930
1965 5,465 -2,261 51,196 932
1964 5,359 -1,924 51,435 934
1963 5,249 -1,764 51,403 938
1962 5,157 -1,667 51,046 934
1961 5,027 -1,518 50,149 924
1960 4,886 -1,406 48,857 910

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

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

Over the last 10 years, 88.2% of the population change in Comoros is from natural causes (a gain of 179,737 people) and 11.8% is from migration (a loss of 24,093 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, 12,449 residents or 1.4% of the population were not native-born in Comoros, compared to 628,404 people or 12.2% in Costa Rica.

Biggest cities by population

Comoros
City Population
Moroni 85.4K
Domoni 17.7K
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/comoros/costa-rica | CC BY

Help us show the world through your eyes

Share a photo of your city and help others discover what it looks like to live there. Your contribution makes our data come alive.

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)

Creative Commons Attribution (CC BY) — you’re free to copy, share, remix, adapt, and use even commercially as long as you give appropriate credit and clearly indicate if you made changes. Other sources may be subject to different license terms.