56 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Findlay | 1 | 40,359 | 40,297 | 0.04% | 2,055 | 20 | City |
| Findlay | 2 | 40,359 | 40,277 | 0.04% | 2,055 | 20 | City |
| Liberty | 3 | 7,181 | 7,093 | 0.32% | 245 | 29 | Township |
| Liberty | 4 | 7,181 | 7,118 | 0.32% | 245 | 29 | Township |
| Washington | 5 | 4,253 | 4,335 | -0.07% | 120 | 35 | Township |
| Washington | 6 | 4,253 | 4,330 | -0.07% | 120 | 35 | Township |
| Van Buren | 7 | 2,777 | 2,828 | -0.43% | 77 | 36 | Township |
| Van Buren | 8 | 2,777 | 2,825 | -0.43% | 77 | 36 | Township |
| Allen | 9 | 2,759 | 2,809 | -0.04% | 119 | 23 | Township |
| Allen | 10 | 2,759 | 2,807 | -0.04% | 119 | 23 | Township |
| Pleasant | 11 | 2,331 | 2,367 | 0.13% | 64 | 36 | Township |
| Pleasant | 12 | 2,331 | 2,365 | 0.13% | 64 | 36 | Township |
| Van Buren | 13 | 2,090 | 2,100 | 0.24% | 57 | 37 | Township |
| Van Buren | 14 | 2,090 | 2,097 | 0.24% | 57 | 37 | Township |
| Union | 15 | 1,821 | 1,860 | -0.11% | 51 | 36 | Township |
| Union | 16 | 1,821 | 1,859 | -0.11% | 51 | 36 | Township |
| McComb | 17 | 1,535 | 1,565 | -0.39% | 1,469 | 1 | Village |
| McComb | 18 | 1,535 | 1,564 | -0.39% | 1,469 | 1 | Village |
| Van Buren | 19 | 1,521 | 1,535 | 0% | 60 | 25 | Township |
| Van Buren | 20 | 1,521 | 1,536 | 0% | 60 | 25 | Township |
| Arlington | 21 | 1,461 | 1,490 | -0.41% | 1,861 | 1 | Village |
| Arlington | 22 | 1,461 | 1,489 | -0.41% | 1,861 | 1 | Village |
| Orange | 23 | 1,286 | 1,308 | 0% | 36 | 36 | Township |
| Orange | 24 | 1,286 | 1,307 | 0% | 36 | 36 | Township |
| Cass | 25 | 1,210 | 1,009 | 3.07% | 50 | 24 | Township |
| Cass | 26 | 1,210 | 1,021 | 3.07% | 50 | 24 | Township |
| Biglick | 27 | 1,142 | 1,164 | -0.09% | 32 | 36 | Township |
| Biglick | 28 | 1,142 | 1,163 | -0.09% | 32 | 36 | Township |
| Blanchard | 29 | 1,110 | 1,124 | 0% | 31 | 36 | Township |
| Blanchard | 30 | 1,110 | 1,123 | 0% | 31 | 36 | Township |
| Eagle | 31 | 1,087 | 1,080 | 0.65% | 30 | 36 | Township |
| Eagle | 32 | 1,087 | 1,079 | 0.65% | 30 | 36 | Township |
| Van Buren | 33 | 980 | 1,002 | -0.2% | 40 | 24 | Township |
| Van Buren | 34 | 980 | 1,001 | -0.2% | 40 | 24 | Township |
| Arcadia | 35 | 552 | 564 | -0.54% | 974 | 1 | Village |
| Arcadia | 36 | 552 | 564 | -0.54% | 974 | 1 | Village |
| Rawson | 37 | 552 | 570 | -0.72% | 1,445 | 0 | Village |
| Rawson | 38 | 552 | 570 | -0.72% | 1,445 | 0 | Village |
| Mount Blanchard | 39 | 454 | 467 | -0.66% | 890 | 1 | Village |
| Mount Blanchard | 40 | 454 | 467 | -0.66% | 890 | 1 | Village |
| Van Buren | 41 | 399 | 397 | 0% | 1,547 | 0 | Village |
| Van Buren | 42 | 399 | 397 | 0% | 1,547 | 0 | Village |
| Vanlue | 43 | 339 | 346 | -0.59% | 974 | 0 | Village |
| Vanlue | 44 | 339 | 346 | -0.59% | 974 | 0 | Village |
| Benton Ridge | 45 | 264 | 272 | -0.75% | 704 | 0 | Village |
| Benton Ridge | 46 | 264 | 272 | -0.75% | 704 | 0 | Village |
| Jenera | 47 | 243 | 251 | -0.82% | 907 | 0 | Village |
| Jenera | 48 | 243 | 251 | -0.82% | 907 | 0 | Village |
| West Leipsic | 49 | 216 | 221 | -0.46% | 867 | 0 | Village |
| West Leipsic | 50 | 216 | 221 | -0.46% | 867 | 0 | Village |
| Mount Cory | 51 | 214 | 222 | -0.93% | 554 | 0 | Village |
| Mount Cory | 52 | 214 | 222 | -0.93% | 554 | 0 | Village |
| Patterson | 53 | 120 | 123 | -0.83% | 1,364 | 0 | Village |
| Patterson | 54 | 120 | 123 | -0.83% | 1,364 | 0 | Village |
| Bairdstown | 55 | 118 | 117 | 0% | 437 | 0 | Village |
| Bairdstown | 56 | 118 | 117 | 0% | 437 | 0 | Village |
Findlay is the largest city in Hancock County, with a population of 40,359.
Bairdstown is the smallest city in Hancock County, with a population of 118.
There are 56 cities in Hancock County, Ohio.