Onotoa's 2026 population is now estimated at 1,573. In 2020, the population of Onotoa was 1,423. Onotoa has grown by 26 in the last year, which represents a 1.68% annual change. These population values and projections come from Kiribati ADM2 population baseline 2020 (HDX COD-PS), Kiribati ADM2 2023 projection using World Bank national growth factor and World Population Review Internal Projections .
| City | 2026 Pop. ↓ | Growth |
|---|---|---|
| South Tarawa | 70,074 | 1.67% |
| Kiritimati | 8,151 | 1.67% |
| North Tarawa | 7,777 | 1.67% |
| Abaiang | 6,485 | 1.66% |
| North Tabiteuea | 4,551 | 1.68% |
| Abemama | 3,597 | 1.67% |
| Butaritari | 3,579 | 1.65% |
| Nonouti | 3,083 | 1.65% |
| Marakei | 3,025 | 1.68% |
| Maiana | 2,657 | 1.68% |
| Beru | 2,452 | 1.7% |
| Nikunau | 2,276 | 1.65% |
| Tabuaeran | 2,201 | 1.66% |
| Makin | 2,115 | 1.68% |
| Teeraina | 2,106 | 1.69% |
| Onotoa | 1,573 | 1.68% |
| South Tabiteuea | 1,498 | 1.63% |
| Aranuka | 1,350 | 1.66% |
| Kuria | 1,316 | 1.7% |
| Tamana | 1,165 | 1.75% |
| Arorae | 1,085 | 1.59% |
| Banaba | 365 | 1.67% |
