14 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Findlay | 1 | 40,038 | 40,290 | -0.13% | 2,038 | 19.64 | City |
| McComb | 2 | 1,510 | 1,565 | -0.72% | 1,445 | 1.04 | Village |
| Arlington | 3 | 1,429 | 1,488 | -0.83% | 1,820 | 0.79 | Village |
| Van Buren | 4 | 681 | 403 | 8.96% | 2,640 | 0.26 | Village |
| Arcadia | 5 | 548 | 565 | -0.54% | 966 | 0.57 | Village |
| Rawson | 6 | 548 | 570 | -0.73% | 1,435 | 0.38 | Village |
| Mount Blanchard | 7 | 455 | 472 | -0.66% | 892 | 0.51 | Village |
| Vanlue | 8 | 334 | 346 | -0.6% | 960 | 0.35 | Village |
| Benton Ridge | 9 | 257 | 271 | -1.15% | 685 | 0.38 | Village |
| Jenera | 10 | 243 | 257 | -1.22% | 907 | 0.27 | Village |
| West Leipsic | 11 | 217 | 221 | -0.46% | 871 | 0.25 | Village |
| Mount Cory | 12 | 214 | 226 | -0.93% | 554 | 0.39 | Village |
| Patterson | 13 | 123 | 127 | -0.81% | 1,398 | 0.09 | Village |
| Bairdstown | 14 | 118 | 117 | 0% | 437 | 0.27 | Village |
Findlay is the largest city in Hancock County, with a population of 40,038.
Bairdstown is the smallest city in Hancock County.
There are 14 cities in Hancock County, Ohio.