3 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Springfield | 1 | 3,026 | 2,857 | 0.93% | 651 | 5 | City |
| Willisburg | 2 | 299 | 299 | 0% | 436 | 1 | City |
| Mackville | 3 | 209 | 205 | 0.48% | 516 | 0 | City |
Springfield is the largest city in Washington County, with a population of 3,026.
Mackville is the smallest city in Washington County, with a population of 209.
There are 3 cities in Washington County, Kentucky.