4 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Bowling Green | 1 | 78,706 | 72,470 | 1.61% | 1,896 | 41.50 | City |
| Smiths Grove | 2 | 820 | 757 | 1.61% | 1,051 | 0.78 | City |
| Woodburn | 3 | 325 | 304 | 1.25% | 751 | 0.43 | City |
| Oakland | 4 | 189 | 199 | -1.05% | 135 | 1.40 | City |
Bowling Green is the largest city in Warren County, with a population of 78,706.
Oakland is the smallest city in Warren County.
There are 4 cities in Warren County, Kentucky.