Below are the urban areas with more than 100,000 inhabitants in Cambodia ranked by population.
Urban Area (or urban agglomeration) population refers to the population contained within the contours of a contiguous territory inhabited at urban density levels, typically comprising a city and its surrounding suburban fringe.
| Rank | Urban Area | Population Estimate (2025) | 1 Year Change (over 2024) | Land Area (Km²) | Density (P/Km²) | Global Rank | Projections (2030) | Projections (2050) |
|---|---|---|---|---|---|---|---|---|
| 1 | Phnum Pénh (Phnom Penh) | 2,261,055 | 0.36% | 359 | 6,298 | 222 | 2,278,473 | 2,309,065 |
| 2 | Siem Reap | 352,948 | 3.06% | 67 | 5,268 | 1,621 | 404,021 | 637,174 |
| 3 | Battambang | 179,778 | 1.35% | 50 | 3,596 | 3,365 | 190,453 | 243,414 |
| 4 | Anlong Veng | 172,053 | 3.21% | 54 | 3,186 | 3,528 | 199,458 | 348,415 |
| 5 | Poipet | 127,995 | 1.29% | 21 | 6,095 | 4,777 | 133,823 | 152,931 |
| 6 | Sihanoukville | 105,307 | 0.41% | 34 | 3,097 | 5,858 | 110,167 | 112,402 |
| 7 | Trapeang Prasat | 96,464 | 3.07% | 15 | 6,431 | 6,406 | 108,574 | 213,946 |
| 8 | Phumi Roessei | 77,897 | 3.5% | 21 | 3,709 | 8,006 | 86,092 | 159,406 |
| 9 | Sisophon | 62,066 | 1.36% | 15 | 4,138 | 10,005 | 64,426 | 77,636 |
| 10 | Kampong Cham | 56,032 | 0.37% | 14 | 4,002 | 10,988 | 57,040 | 57,208 |
Source: United Nations, Department of Economic and Social Affairs, Population Division (2025). World Urbanization Prospects: The 2025 Revision, Online Edition.