Nkayi's 2026 population is now estimated at 111,640. In 1984, the population of Nkayi was 36,540. Nkayi has grown by 2,578 in the last year, which represents a 2.36% annual change. These population values and projections come from Republic of the Congo city/locality census series 1984-2007 via CityPopulation attribution, Republic of the Congo INS RGPH-5 localities 2023 direct PDF extraction and World Population Review Internal Projections .
| City | 2026 Pop. ↓ | Growth |
|---|---|---|
| Brazzaville | 2,323,299 | 2.81% |
| Pointe-Noire | 1,586,239 | 4.28% |
| Dolisie | 205,241 | 4.83% |
| Nkayi | 111,640 | 2.36% |
| Ouesso | 87,248 | 5.13% |
| Oyo | 73,890 | 5.13% |
| Betou | 69,202 | 5.13% |
| Gamboma | 61,173 | 5.13% |
| Owando | 55,217 | 4.32% |
| Madingou | 48,383 | 3.38% |
| Makoua | 39,976 | 5.13% |
| Impfondo | 39,111 | 0.75% |
| Sibiti | 36,455 | 2.47% |
| Mossaka | 35,942 | 4.67% |
| Mindouli | 33,824 | 4.54% |
| Pokola | 33,194 | 5.13% |
| Ewo | 32,797 | 5.13% |
| Djambala | 28,737 | 5.13% |
| Bouansa | 27,891 | 2.02% |
| Loutete | 27,739 | 1.95% |
| Kinkala | 27,202 | 5.13% |
| Loudima | 23,418 | 2.69% |
| Mouyondzi | 23,359 | 3.26% |
| Ngo | 22,062 | 4.18% |
| Boundji | 19,329 | 5.12% |
| Ignie | 17,349 | 5.13% |
| Enyelle | 17,049 | 5.13% |
| Mossendjo | 15,359 | 0.78% |
| Dongou | 15,155 | 4.1% |
| Loukolela | 14,414 | 5.13% |
| Ollombo | 13,760 | 5.02% |
| Tchiamba-Nzassi | 12,561 | 4% |
| Souanke | 12,314 | 5.12% |
| Etoumbi | 11,288 | 2.02% |
| Sembe | 10,620 | 4.1% |
| Kindamba | 10,064 | 2.78% |
| Makabana | 7,031 | -1.46% |
| Mokeko | 6,123 | 2.27% |
| Epena | 6,030 | 5.13% |
| Ngabe | 5,379 | 5.12% |
| Komono | 4,919 | -1.34% |
| Lekana | 4,844 | 0.96% |
| Kelle | 4,271 | -2.02% |
| Kimongo | 4,226 | 1.88% |
| Boko | 3,742 | 5.11% |
| Mbinda | 3,727 | -0.88% |
| Mabombo | 3,718 | 5.12% |
| Kibouende | 3,640 | 5.11% |
| Ongogni | 3,540 | 5.14% |
| Zanaga | 3,497 | -0.85% |
| Divenie | 3,401 | -0.82% |
| Abala | 3,392 | 3.41% |
| Hinda | 2,203 | -0.94% |
| Tchikapika | 1,873 | 3.88% |
| Mvouti | 1,688 | 0.9% |
| Kibangou | 1,679 | -1.24% |
| Madingou-Kayes | 816 | 0.12% |