| Source | UN (World Population Prospects 2024) |
| Date | 20 Mar 2025 |
As of 2025, the population of Kiribati is projected at 136k, compared to 135k in 2024. It ranks 11th in Oceania and 193rd in the world. The population growth rate in 2025 is projected at 1.44 percent, the 74th highest among 237 countries and dependent territories.
There are 66k males and 70k females in Kiribati. The percentage of the male population is 48.58%, compared to 51.42% of the female population. Kiribati has 3,876 more females than males. The sex ratio in Kiribati in 2025 will be 94.478 males per 100 females. Kiribati is in the 52nd position in terms of the female-to-male ratio.
| Year | Population | Growth (%) | M per 100 F | ||
|---|---|---|---|---|---|
| Male | Female | Total | |||
| 1950 | 18,348 | 19,497 | 37,846 | 2.02 | 94.107 |
| 1955 | 20,562 | 21,479 | 42,041 | 2.22 | 95.731 |
| 1960 | 23,238 | 23,919 | 47,157 | 2.41 | 97.153 |
| 1965 | 26,503 | 26,936 | 53,439 | 2.59 | 98.392 |
| 1970 | 28,409 | 29,101 | 57,510 | 2.00 | 97.622 |
| 1975 | 30,101 | 30,886 | 60,987 | -0.47 | 97.458 |
| 1980 | 30,304 | 30,843 | 61,148 | 1.56 | 98.252 |
| 1985 | 32,864 | 33,633 | 66,496 | 2.19 | 97.714 |
| 1990 | 36,785 | 38,069 | 74,855 | 2.25 | 96.627 |
| 1995 | 39,788 | 41,446 | 81,234 | 1.55 | 96.000 |
| 2000 | 43,237 | 45,376 | 88,613 | 1.72 | 95.286 |
| 2005 | 47,840 | 50,196 | 98,035 | 2.00 | 95.306 |
| 2010 | 52,962 | 55,742 | 108,704 | 2.02 | 95.013 |
| 2015 | 56,367 | 60,447 | 116,815 | 1.31 | 93.250 |
| 2020 | 60,859 | 65,240 | 126,099 | 1.99 | 93.285 |
| 2021 | 62,041 | 66,337 | 128,377 | 1.60 | 93.524 |
| 2022 | 63,132 | 67,337 | 130,469 | 1.63 | 93.755 |
| 2023 | 64,231 | 68,300 | 132,530 | 1.50 | 94.042 |
| 2024 | 65,279 | 69,239 | 134,518 | 1.47 | 94.281 |
| 2025 | 66,306 | 70,182 | 136,488 | 1.44 | 94.477 |
| Year | Life expectancy | Median age | Fertility rate |
|---|---|---|---|
| 1950 | 45.721 | 21.063 | 6.130 |
| 1955 | 46.288 | 19.369 | 6.324 |
| 1960 | 47.958 | 17.687 | 6.441 |
| 1965 | 51.028 | 16.786 | 6.262 |
| 1970 | 54.380 | 16.406 | 5.706 |
| 1975 | 56.358 | 16.702 | 5.019 |
| 1980 | 57.303 | 17.517 | 4.964 |
| 1985 | 58.719 | 18.613 | 4.911 |
| 1990 | 61.018 | 19.220 | 4.668 |
| 1995 | 63.146 | 18.665 | 4.419 |
| 2000 | 64.674 | 18.651 | 4.071 |
| 2005 | 65.517 | 19.456 | 3.760 |
| 2010 | 65.859 | 20.252 | 3.898 |
| 2015 | 65.831 | 21.269 | 3.438 |
| 2020 | 65.205 | 22.183 | 3.254 |
| 2021 | 64.148 | 22.363 | 3.219 |
| 2022 | 66.269 | 22.529 | 3.182 |
| 2023 | 66.473 | 22.686 | 3.147 |
| 2024 | 66.600 | 22.823 | 3.124 |
| 2025 | 66.724 | 22.939 | 3.092 |
| Year | Total | Crude(per 1000) | ||
|---|---|---|---|---|
| Death | Birth | Crude death | Crude birth | |
| 1950 | 883 | 1,641 | 23.344 | 43.359 |
| 1955 | 912 | 1,838 | 21.701 | 43.710 |
| 1960 | 911 | 2,051 | 19.314 | 43.499 |
| 1965 | 869 | 2,246 | 16.269 | 42.027 |
| 1970 | 801 | 2,189 | 13.934 | 38.070 |
| 1975 | 738 | 2,162 | 12.107 | 35.448 |
| 1980 | 681 | 2,252 | 11.139 | 36.831 |
| 1985 | 705 | 2,586 | 10.597 | 38.885 |
| 1990 | 698 | 2,824 | 9.318 | 37.727 |
| 1995 | 659 | 2,842 | 8.107 | 34.981 |
| 2000 | 638 | 2,791 | 7.204 | 31.498 |
| 2005 | 672 | 2,861 | 6.860 | 29.181 |
| 2010 | 753 | 3,397 | 6.926 | 31.247 |
| 2015 | 816 | 3,371 | 6.990 | 28.858 |
| 2020 | 953 | 3,449 | 7.555 | 27.355 |
| 2021 | 1,047 | 3,455 | 8.152 | 26.909 |
| 2022 | 923 | 3,445 | 7.073 | 26.403 |
| 2023 | 934 | 3,421 | 7.046 | 25.813 |
| 2024 | 950 | 3,405 | 7.059 | 25.309 |
| 2025 | 965 | 3,385 | 7.071 | 24.799 |
| Year | Population | Urban (%) | |
|---|---|---|---|
| Urban | Rural | ||
| 1950 | 3,635 | 29,413 | 11.000 |
| 1955 | 4,913 | 31,683 | 13.426 |
| 1960 | 6,717 | 34,516 | 16.290 |
| 1965 | 9,117 | 37,336 | 19.625 |
| 1970 | 12,328 | 38,850 | 24.088 |
| 1975 | 16,334 | 38,835 | 29.606 |
| 1980 | 19,157 | 40,182 | 32.284 |
| 1985 | 21,467 | 42,536 | 33.541 |
| 1990 | 25,335 | 47,077 | 34.987 |
| 1995 | 28,301 | 49,429 | 36.409 |
| 2000 | 36,259 | 48,147 | 42.958 |
| 2005 | 40,209 | 52,116 | 43.551 |
| 2010 | 48,647 | 54,005 | 47.390 |
| 2015 | 58,024 | 54,383 | 51.619 |
| 2020 | 68,069 | 54,370 | 55.594 |
| 2021 | 70,100 | 54,333 | 56.335 |
| 2022 | 72,129 | 54,284 | 57.058 |
| 2023 | 74,160 | 54,228 | 57.762 |
| 2024 | 76,183 | 54,160 | 58.448 |
| Age group | Male | Female | Total | M per 100 F | |
|---|---|---|---|---|---|
| Persons | Share (%) | ||||
| 00-04 | 8,342 | 7,868 | 16,210 | 11.88 | 106.024 |
| 05-09 | 7,990 | 7,659 | 15,649 | 11.47 | 104.322 |
| 10-14 | 7,532 | 7,511 | 15,044 | 11.02 | 100.280 |
| 15-19 | 6,372 | 6,601 | 12,972 | 9.50 | 96.531 |
| 20-24 | 5,388 | 5,323 | 10,711 | 7.85 | 101.221 |
| 25-29 | 5,696 | 5,824 | 11,520 | 8.44 | 97.802 |
| 30-34 | 5,119 | 5,527 | 10,645 | 7.80 | 92.618 |
| 35-39 | 4,415 | 4,915 | 9,329 | 6.83 | 89.827 |
| 40-44 | 3,792 | 4,218 | 8,011 | 5.87 | 89.900 |
| 45-49 | 2,891 | 3,239 | 6,130 | 4.49 | 89.256 |
| 50-54 | 2,292 | 2,740 | 5,032 | 3.69 | 83.650 |
| 55-59 | 2,284 | 2,775 | 5,059 | 3.71 | 82.306 |
| 60-64 | 1,861 | 2,345 | 4,207 | 3.08 | 79.360 |
| 65-69 | 1,117 | 1,523 | 2,640 | 1.93 | 73.342 |
| 70-74 | 622 | 997 | 1,619 | 1.19 | 62.387 |
| 75-79 | 361 | 621 | 982 | 0.72 | 58.132 |
| 80-84 | 176 | 346 | 522 | 0.38 | 50.867 |
| 85-89 | 48 | 121 | 170 | 0.12 | 39.669 |
| 90-94 | 9 | 26 | 35 | 0.03 | 34.615 |
| 95-99 | 1 | 4 | 4 | 0.00 | 25.000 |
| Total | 66,308 | 70,183 | 136,491 | 94.479 | |