6 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Circleville | 1 | 14,673 | 13,952 | 0.82% | 2,033 | 7 | City |
| Ashville | 2 | 4,861 | 4,552 | 1.08% | 1,963 | 2 | Village |
| Commercial Point | 3 | 3,285 | 3,092 | 0.98% | 705 | 5 | Village |
| Williamsport | 4 | 1,035 | 978 | 0.98% | 583 | 2 | Village |
| New Holland | 5 | 843 | 806 | 0.72% | 536 | 2 | Village |
| Tarlton | 6 | 271 | 255 | 1.12% | 706 | 0 | Village |
Circleville is the largest city in Pickaway County, with a population of 14,673.
Tarlton is the smallest city in Pickaway County, with a population of 271.
There are 6 cities in Pickaway County, Ohio.