3 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Springfield | 1 | 2,995 | 2,859 | 0.91% | 728 | 4.11 | City |
| Willisburg | 2 | 302 | 299 | 0.33% | 440 | 0.69 | City |
| Mackville | 3 | 208 | 205 | 0.48% | 514 | 0.41 | City |
Springfield is the largest city in Washington County, with a population of 2,995.
Mackville is the smallest city in Washington County.
There are 3 cities in Washington County, Kentucky.