Prek Sdei's 2026 population is now estimated at 21,322. In 1998, the population of Prek Sdei was 18,993. Prek Sdei has grown by 82 in the last year, which represents a 0.39% annual change. These population values and projections come from CityPopulation Cambodia cities, urban areas and urban communes table (1998/2008/2019) - fallback and World Population Review Internal Projections .
| City | 2026 Pop. ↓ | Growth |
|---|---|---|
| Phnom Penh | 2,542,893 | 2.03% |
| Siem Reap | 259,631 | 1.91% |
| Battambang | 144,961 | -0.67% |
| Ta Khmau | 99,248 | 1.15% |
| Poipet | 91,205 | 1.87% |
| Sisophon | 80,478 | 0.29% |
| Preah Sihanouk | 72,317 | 0.25% |
| Kampong Thom | 63,004 | 1.8% |
| Pouthisat | 62,747 | 0.06% |
| Takev | 55,427 | 2.74% |
| Kampong Speu | 55,229 | 0.9% |
| Svay Rieng | 50,153 | 2.39% |
| Stoeng Treng | 49,063 | 2.52% |
| Pailin | 48,626 | 3% |
| Angk Snuol | 46,922 | 2.31% |
| Kokir | 45,865 | 0.4% |
| Kampong Chhnang | 43,833 | 0.17% |
| Kampong Cham | 42,526 | -0.21% |
| Banlung | 39,351 | 2.59% |
| Prey Veng | 38,366 | 0.79% |
| Peam Ro | 36,178 | 1.6% |
| Thma Koul | 35,632 | -0.52% |
| Kampot | 35,609 | 0.74% |
| O Chrou | 30,521 | 0.31% |
| Vihear Suork | 29,745 | 1.67% |
| Koh Kong | 28,705 | -0.07% |
| Kracheh | 26,732 | -0.29% |
| Samraong | 26,364 | 1.97% |
| Rssei Kraok | 26,032 | 0.3% |
| Samraong Thom | 24,208 | 0.83% |
| Trapeang Kong | 24,165 | 1.86% |
| Anlong Veng | 22,139 | 2.43% |
| Suong | 22,084 | -0.13% |
| Prek Ambel | 21,551 | 0.17% |
| Prek Sdei | 21,322 | 0.39% |
| Sampou Poun | 20,991 | 0.39% |
| Trapeang Sab | 20,191 | 0.91% |
| Skon | 15,862 | 0.86% |
| Prey Totoeng | 15,300 | -0.06% |
| Preah Vihear | 14,151 | 1.62% |
| Anlong Romiet | 12,646 | 1.52% |
| Sre Ambel | 10,347 | -1.57% |
| Sen Monorom | 8,238 | 1.72% |
| Kep | 5,925 | 1.11% |
