14 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Ashland | 1 | 18,379 | 19,226 | -0.91% | 1,629 | 11.28 | City |
| Loudonville | 2 | 2,768 | 2,785 | -0.11% | 1,017 | 2.72 | Village |
| Sullivan | 3 | 1,158 | 774 | 7.22% | 280 | 4.14 | CDP |
| Cinnamon Lake | 4 | 973 | 1,228 | -1.82% | 601 | 1.62 | CDP |
| Nankin | 5 | 853 | 750 | 7.16% | 577 | 1.48 | CDP |
| Perrysville | 6 | 726 | 730 | -0.14% | 913 | 0.80 | Village |
| Jeromesville | 7 | 522 | 531 | -0.38% | 1,513 | 0.34 | Village |
| Hayesville | 8 | 440 | 447 | -0.23% | 596 | 0.74 | Village |
| Bailey Lakes | 9 | 343 | 350 | -0.29% | 900 | 0.38 | Village |
| Savannah | 10 | 321 | 325 | -0.31% | 573 | 0.56 | Village |
| Polk | 11 | 305 | 309 | -0.33% | 301 | 1.01 | Village |
| New Pittsburg | 12 | 264 | 363 | -2.94% | 194 | 1.36 | CDP |
| Mifflin | 13 | 154 | 159 | -0.65% | 842 | 0.18 | Village |
| Congress | 14 | 130 | 134 | -0.76% | 813 | 0.16 | Village |
Ashland is the largest city in Ashland County, with a population of 18,379.
Congress is the smallest city in Ashland County.
There are 14 cities in Ashland County, Ohio.