21 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Bucyrus | 1 | 11,446 | 11,685 | -0.42% | 1,549 | 7.39 | City |
| Galion | 2 | 10,191 | 10,445 | -0.5% | 1,378 | 7.39 | City |
| Crestline | 3 | 4,417 | 4,524 | -0.47% | 1,301 | 3.39 | Village |
| Whetstone township | 4 | 1,972 | 1,963 | 0.46% | 48 | 40.74 | Township |
| Cranberry township | 5 | 1,409 | 1,419 | 0.07% | 50 | 28.17 | Township |
| Liberty township | 6 | 1,346 | 1,350 | 0.22% | 42 | 32.33 | Township |
| Holmes township | 7 | 1,257 | 1,251 | 0.4% | 36 | 35.10 | Township |
| New Washington | 8 | 848 | 867 | -0.47% | 633 | 1.34 | Village |
| Bucyrus township | 9 | 804 | 801 | 0.37% | 26 | 31.34 | Township |
| Auburn township | 10 | 760 | 779 | -0.39% | 31 | 24.61 | Township |
| Vernon township | 11 | 760 | 757 | 0.4% | 35 | 21.47 | Township |
| Chatfield township | 12 | 690 | 699 | 0% | 23 | 29.94 | Township |
| Tod township | 13 | 639 | 637 | 0.47% | 35 | 18.20 | Township |
| Lykens township | 14 | 623 | 623 | 0.32% | 21 | 30.23 | Township |
| Dallas township | 15 | 450 | 446 | 0.67% | 20 | 22.13 | Township |
| Texas township | 16 | 322 | 319 | 0.63% | 27 | 12.04 | Township |
| Oceola | 17 | 249 | 182 | 1.63% | 497 | 0.50 | CDP |
| North Robinson | 18 | 215 | 219 | -0.46% | 2,028 | 0.11 | Village |
| Tiro | 19 | 213 | 222 | -0.93% | 513 | 0.41 | Village |
| Chatfield | 20 | 197 | 204 | -0.51% | 668 | 0.29 | Village |
| Sulphur Springs | 21 | 193 | 159 | 0% | 801 | 0.24 | CDP |
Bucyrus is the largest city in Crawford County, with a population of 11,446.
Sulphur Springs is the smallest city in Crawford County.
There are 21 cities in Crawford County, Ohio.