Vaini's 2026 population is now estimated at 13,402. In 2011, the population of Vaini was 12,949. Vaini has grown by 41 in the last year, which represents a 0.31% annual change. These population values and projections come from Tonga census district population 2011 (TSD Table G1), Tonga census district population 2016 (TSD Table G1), Tonga census district population 2021 (TSD Table G1) and World Population Review Internal Projections .
| City | 2026 Pop. ↓ | Growth |
|---|---|---|
| Rural | 80,590 | 0.4% |
| Nukualofa | 33,131 | -0.6% |
| Urban | 19,328 | -1.82% |
| Kolomotua | 16,620 | -0.29% |
| Kolofoou | 16,519 | -0.89% |
| Vaini | 13,402 | 0.31% |
| Nukunuku | 8,357 | 0.43% |
| Lapaha | 7,506 | 0.54% |
| Tatakamotonga | 7,344 | 0.42% |
| Neiafu | 5,441 | 0.37% |
| Kolovai | 4,335 | 0.16% |
| Leimatua | 3,275 | 2.79% |
| Eua Motua | 2,686 | -0.41% |
| Hahake | 2,289 | 1.24% |
| Eua Foou | 2,098 | -0.24% |
| Hihifo | 1,948 | -0.2% |
| Pangai | 1,891 | -1.51% |
| Foa | 1,290 | -0.77% |
| Pangaimotu | 1,171 | -0.59% |
| Niuatoputapu | 698 | -0.57% |
| Motu | 578 | -2.53% |
| Lulunga | 567 | -4.71% |
| Muomua | 551 | 2.42% |
| Uiha | 546 | -2.33% |
| Ha`ano | 435 | -0.91% |
| Niuafoou | 375 | -2.85% |
