The population of Kiribati is expected to grow by 2,000 in 2025 and reach 134,000 in 2026. Migration (including immigration and emigration) decreases population by 426 people yearly. On average there are 3,251 births and 914 deaths in Kiribati per year. Rate of natural increase is approximately 1.77 percent per year. The population density of Kiribati has changed from 73.3 in 1980 to 158.5 in 2023.
| Current population | 133,025 people at present (Sunday 6th of July 2025) | |
| Median Age | 27.4 years |
| Life expectancy | 67.8 years | |
| Population density | 163.3 per km2 |
| Year | Population | Year change | Migrants | Median age | Fertility rate | Density (Ppl/km2) | Urban population |
|---|---|---|---|---|---|---|---|
| 2025 | 132,000 | 2,000 (1.5%) | -426 | 27.4 | 3.32 | 163 | 61,000 (46.3%) |
| 2024 | 130,000 | 2,000 (1.5%) | -426 | 27.1 | 161 | 60,000 (46.0%) | |
| 2023 | 128,000 | 2,000 (1.6%) | -426 | 27.1 | 159 | 59,000 (45.8%) | |
| 2022 | 126,000 | 2,000 (1.6%) | -426 | 26.9 | 156 | 58,000 (45.6%) | |
| 2021 | 124,000 | 2,000 (1.6%) | -426 | 26.7 | 154 | 56,000 (45.4%) | |
| 2020 | 122,000 | 2,000 (1.6%) | -426 | 26.6 | 3.49 | 151 | 55,000 (45.1%) |
| 2019 | 0 | 0 (0.0%) | -425 | 26.5 | 3.53 | 149 | 54,000 (45.0%) |
| 2018 | 0 | 0 (0.0%) | -425 | 26.4 | 3.57 | 146 | 53,000 (44.8%) |
| 2017 | 0 | 0 (0.0%) | -425 | 26.3 | 3.61 | 144 | 52,000 (44.6%) |
| 2016 | 0 | 0 (0.0%) | -425 | 26.2 | 3.65 | 141 | 50,845 (44.4%) |
| 2015 | 112,407 | 1,949 (1.7%) | -425 | 26.0 | 3.69 | 139 | 49,801 (44.3%) |
| 2010 | 102,652 | 2,084 (2.0%) | -426 | 25.4 | 3.84 | 127 | 44,934 (43.8%) |
| 2005 | 92,325 | 1,783 (1.9%) | -116 | 25.1 | 3.91 | 114 | 40,208 (43.6%) |
| 2000 | 84,406 | 1,440 (1.7%) | -408 | 24.3 | 4.06 | 104 | 36,259 (43.0%) |
| 1995 | 77,730 | 1,059 (1.4%) | -595 | 23.9 | 4.37 | 96 | 28,301 (36.4%) |
| 1990 | 72,412 | 1,552 (2.1%) | -920 | 23.8 | 4.69 | 89 | 25,335 (35.0%) |
| 1985 | 64,003 | 1,238 (1.9%) | -153 | 23.7 | 4.91 | 79 | 21,467 (33.5%) |
| 1980 | 59,339 | 833 (1.4%) | -622 | 24.1 | 5.07 | 73 | 19,157 (32.3%) |
| 1975 | 55,169 | 789 (1.4%) | -515 | 23.8 | 4.98 | 68 | 16,333 (29.6%) |
| 1970 | 51,178 | 884 (1.7%) | -300 | 22.9 | 5.46 | 63 | 12,328 (24.1%) |
| 1965 | 46,453 | 1,028 (2.2%) | -255 | 22.4 | 6.50 | 57 | 9,116 (19.6%) |
| 1960 | 41,233 | 1,024 (2.4%) | -244 | 22.6 | 6.79 | 51 | 6,717 (16.3%) |
In 2024 the population of Kiribati was 130,000 and the average age increased from 22.6 in 1960 to 27.1. Urban population has increased from 36,259 (43.0%) in 2000 to 61,000 (46.3%) in the current year. The population density of Kiribati has changed from 73.3 in 1980 to 158.5 in 2023.
| Year | Population | Year change | Migrants | Median age | Fertility rate | Density (Ppl/km2) | Urban population |
|---|---|---|---|---|---|---|---|
| 2020 | 0 | 0 (0.0%) | -426 | 26.6 | 3.49 | 151 | 55,000 (45.1%) |
| 2025 | 132,000 | 2,000 (1.5%) | -426 | 27.4 | 3.32 | 163 | 61,000 (46.3%) |
| 2030 | 142,000 | 2,000 (1.4%) | -426 | 28.2 | 3.16 | 175 | 68,000 (47.8%) |
| 2035 | 150,000 | 1,000 (0.7%) | -426 | 29.1 | 3.03 | 186 | 74,000 (49.4%) |
| 2040 | 159,000 | 2,000 (1.3%) | -425 | 29.9 | 2.91 | 197 | 81,000 (51.1%) |
| 2045 | 169,000 | 2,000 (1.2%) | -425 | 30.6 | 2.80 | 208 | 89,000 (52.8%) |
| 2050 | 178,000 | 2,000 (1.1%) | -425 | 31.1 | 2.71 | 220 | 97,000 (54.5%) |
The life expectancy at birth should reach 71.3 (67.6 years for male and 75.1 years for females). Population density will go up to 219.9 people per square kilometer.
The demographics of Kiribati constitutes of 67,000 women and 65,000 men, which means there are 970 men per 1000 women. As far as age distribution goes, 44.3% of population (58,489) is 19 or younger, 51.1% of population (67,492) is between age 20 and 64 and 4.8% of population (6,389) is over 65.