The latest officially reported population of Comoros was 866,628 in 2024 vs 5,129,910 people in Costa Rica in 2024. In 2026, based on the adjusted UN estimation, the current Comoros' population is 903,776 people compared to 5,181,862 in Costa Rica.
Population statistics:
- Costa Rica's population is 5.73 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 +2.01% per year vs +0.77% in Costa Rica.
- Since 2006, the population of Comoros has increased from 605K people to 904K (49.4% growth), while Costa Rica has grown from 4.32M to 5.18M (19.9% growth).
Comoros vs Costa Rica: population by year and forecast
| Year | Population | |
|---|---|---|
Comoros
|
Costa Rica
|
|
| 2100 | 1,926,386 | 3,804,183 |
| 2099 | 1,920,621 | 3,842,423 |
| 2098 | 1,914,609 | 3,880,999 |
| 2097 | 1,908,134 | 3,919,996 |
| 2096 | 1,901,525 | 3,959,352 |
| 2095 | 1,894,422 | 3,999,084 |
| 2094 | 1,887,108 | 4,039,053 |
| 2093 | 1,879,656 | 4,079,349 |
| 2092 | 1,871,817 | 4,119,898 |
| 2091 | 1,863,580 | 4,160,663 |
| 2090 | 1,854,999 | 4,201,548 |
| 2089 | 1,846,139 | 4,242,452 |
| 2088 | 1,836,994 | 4,283,327 |
| 2087 | 1,827,684 | 4,324,225 |
| 2086 | 1,817,890 | 4,364,979 |
| 2085 | 1,807,957 | 4,405,520 |
| 2084 | 1,797,607 | 4,445,770 |
| 2083 | 1,786,775 | 4,485,644 |
| 2082 | 1,775,826 | 4,525,171 |
| 2081 | 1,764,709 | 4,564,265 |
| 2080 | 1,753,314 | 4,602,737 |
| 2079 | 1,741,768 | 4,640,677 |
| 2078 | 1,729,732 | 4,677,935 |
| 2077 | 1,717,501 | 4,714,527 |
| 2076 | 1,704,841 | 4,750,309 |
| 2075 | 1,691,947 | 4,785,359 |
| 2074 | 1,678,984 | 4,819,691 |
| 2073 | 1,665,784 | 4,853,137 |
| 2072 | 1,652,395 | 4,885,727 |
| 2071 | 1,638,685 | 4,917,445 |
| 2070 | 1,625,082 | 4,948,313 |
| 2069 | 1,611,152 | 4,978,425 |
| 2068 | 1,596,935 | 5,007,604 |
| 2067 | 1,582,442 | 5,035,877 |
| 2066 | 1,567,829 | 5,063,521 |
| 2065 | 1,553,142 | 5,090,474 |
| 2064 | 1,538,246 | 5,116,546 |
| 2063 | 1,523,197 | 5,141,922 |
| 2062 | 1,508,112 | 5,166,260 |
| 2061 | 1,492,603 | 5,189,836 |
| 2060 | 1,476,941 | 5,212,549 |
| 2059 | 1,461,147 | 5,234,066 |
| 2058 | 1,445,237 | 5,254,528 |
| 2057 | 1,429,173 | 5,273,844 |
| 2056 | 1,412,910 | 5,292,013 |
| 2055 | 1,396,415 | 5,308,829 |
| 2054 | 1,379,788 | 5,324,305 |
| 2053 | 1,362,991 | 5,338,417 |
| 2052 | 1,345,832 | 5,350,974 |
| 2051 | 1,328,600 | 5,361,865 |
| 2050 | 1,311,253 | 5,371,197 |
| 2049 | 1,293,896 | 5,378,904 |
| 2048 | 1,276,263 | 5,385,081 |
| 2047 | 1,258,915 | 5,389,678 |
| 2046 | 1,241,424 | 5,392,713 |
| 2045 | 1,223,821 | 5,394,209 |
| 2044 | 1,206,037 | 5,394,124 |
| 2043 | 1,188,317 | 5,392,590 |
| 2042 | 1,170,812 | 5,389,628 |
| 2041 | 1,153,264 | 5,385,101 |
| 2040 | 1,135,741 | 5,379,344 |
| 2039 | 1,118,219 | 5,372,186 |
| 2038 | 1,100,871 | 5,363,617 |
| 2037 | 1,083,597 | 5,353,928 |
| 2036 | 1,066,250 | 5,343,027 |
| 2035 | 1,049,097 | 5,330,994 |
| 2034 | 1,032,144 | 5,317,895 |
| 2033 | 1,015,163 | 5,303,634 |
| 2032 | 998,403 | 5,288,416 |
| 2031 | 981,702 | 5,272,215 |
| 2030 | 965,069 | 5,255,064 |
| 2029 | 948,475 | 5,236,901 |
| 2028 | 932,007 | 5,217,724 |
| 2027 | 915,654 | 5,197,413 |
| 2026 | 899,373 | 5,176,096 |
| 2025 | 883,023 | 5,153,634 |
| 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 (2025–2100, retrieved 2026-03-10); World Bank | Health (1960–2024, retrieved 2026-04-06).
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 162,035 people (a 21.8% growth), while Costa Rica's population increased by 314,864 people (a 6.47% 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 45.1% to 1,311,253 people with a rank change from 160th to 157th. The population of Costa Rica will increase by 3.65% to 5,371,197 people and will still be ranked 126th.
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
| 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 | 1.89% | 0.46% |
| 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 (2025–2100, retrieved 2026-03-10); World Bank | Health (1961–2024, retrieved 2026-04-06).
GeoRank.org/population/comoros/costa-rica | CC BY
In 2024, the population of Comoros grew by 1.91%, while Costa Rica's population grew by 0.48%.
Live population counters
|
Comoros
|
Costa Rica
|
|
|---|---|---|
| Current population |
903776
|
5181862
|
| Population rank | 160/197 | 126/197 |
| Percent of world population | 0.01% | 0.06% |
| One net population change |
32.4 minutes
|
21.6 minutes
|
| One birth every |
21.6 minutes
|
10.1 minutes
|
| One death every |
1.43 hours
|
18.9 minutes
|
| Daily growth/decline | +44 | +67 |
| Annual growth/decline | +16,241 | +24,385 |
| Annual growth/decline rate | +1.91% | +0.48% |
| Population growth rate rank | 56/197 | 138/197 |
| 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
| Year | Population change | |||
|---|---|---|---|---|
|
Comoros
|
Costa Rica
|
|||
| Natural | Migration | Natural | Migration | |
| 2025 | - | -2,127 | - | 1,000 |
| 2024 | - | -2,051 | - | 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 2026-04-06).
GeoRank.org/population/comoros/costa-rica | CC BY
Over the last 10 years, 87.9% of the population change in Comoros is from natural causes (a gain of 179,319 people) and 12.1% is from migration (a loss of 24,709 people). In Costa Rica 96.3% is from natural causes (a gain of 362,624 people) and 3.69% is from migration (a gain of 13,900 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 differences between Comoros and Costa Rica
|
Comoros
|
Costa Rica
|
|
|---|---|---|
| Life expectancy | 67.5 years | 81.4 years |
| Average age | 25.8 years | 37 years |
| Median age | 21.5 years | 35.6 years |
| Male:Female ratio | 50.3:49.7 | 49.4:50.6 |
| Fertility rate | 3.88 births per woman | 1.33 births per woman |
| Population density | 1,252 ppl/mi² | 262.6 ppl/mi² |
Population map with other countries
Data sources: World Bank | Health (1960–2024, retrieved 2026-04-06); United Nations | World Population Prospects (1960–2026, retrieved 2026-03-10); U.S. Census Bureau (1960–2025, retrieved 2026-02-08); Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-02-20).
GeoRank.org/population/comoros/costa-rica | CC BY
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Data sources:
- World Bank | Health (1960–2025, retrieved 2026-04-06)
- United Nations | World Population Prospects (1960–2100, retrieved 2026-03-10)
- U.S. Census Bureau (1960–2025, retrieved 2026-02-08)
- Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-02-20)
- Wikidata (2026, retrieved 2026-02-08)
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