Ruyigi's 2026 population is now estimated at 11,901. In 1990, the population of Ruyigi was 2,377. Ruyigi has grown by 265 in the last year, which represents a 2.28% annual change. These population values and projections come from CityPopulation Burundi urban localities table (1990) - fallback, INSBU RGPH 2008 Chapitre 1 (ETA5) - urban and rural population by commune and World Population Review Internal Projections .
| City | 2026 Pop. ↓ | Growth |
|---|---|---|
| Bujumbura | 758,892 | 1.95% |
| Ngozi | 65,257 | 2.21% |
| Gitega | 63,180 | 1.9% |
| Rumonge | 56,046 | 2.04% |
| Cibitoke | 39,490 | 2.24% |
| Bubanza | 37,117 | 2.62% |
| Kayanza | 36,653 | 2.31% |
| Karuzi | 17,231 | 2.28% |
| Kirundo | 14,867 | 1.84% |
| Muyinga | 13,685 | 1.68% |
| Makamba | 13,594 | 1.74% |
| Ruyigi | 11,901 | 2.28% |
| Gatumba | 11,700 | 0% |
| Rutana | 9,786 | 2.28% |
| Muramvya | 8,626 | 2.08% |
| Cankuzo | 5,605 | 2% |
| Isale | 4,977 | 0% |
| Bururi | 4,478 | 0% |
| Kanyosha | 4,272 | 0% |
| Bwambarangwe | 4,044 | 0% |
