11 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| New Lexington | 1 | 4,455 | 4,434 | 0.09% | 2,288 | 1.95 | Village |
| Crooksville | 2 | 2,388 | 2,423 | -0.29% | 1,471 | 1.62 | Village |
| Somerset | 3 | 1,466 | 1,483 | -0.2% | 1,258 | 1.17 | Village |
| Shawnee | 4 | 1,111 | 1,054 | 2.3% | 173 | 6.42 | CDP |
| Thornville | 5 | 1,097 | 1,084 | 0.27% | 2,062 | 0.53 | Village |
| Junction City | 6 | 718 | 723 | -0.14% | 1,117 | 0.64 | Village |
| New Straitsville | 7 | 649 | 654 | -0.15% | 499 | 1.30 | Village |
| Shawnee | 8 | 497 | 504 | -0.2% | 221 | 2.25 | Village |
| Corning | 9 | 482 | 489 | -0.21% | 1,121 | 0.43 | Village |
| Glenford | 10 | 163 | 165 | 0% | 1,442 | 0.11 | Village |
| Hemlock | 11 | 145 | 145 | 0% | 390 | 0.37 | Village |
New Lexington is the largest city in Perry County, with a population of 4,455.
Hemlock is the smallest city in Perry County.
There are 11 cities in Perry County, Ohio.