There are 26 cities in Putnam County, Ohio.
Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)
City | Rank | State | 2024 Population | 2020 Census | Annual Change | Density (mi²) | Area (mi²) |
|---|---|---|---|---|---|---|---|
| Delphos | 1 | Ohio | 7,065 | 7,111 | -0.15% | 2,127 | 3.32 |
| Ottawa | 2 | Ohio | 4,403 | 4,449 | -0.25% | 968 | 4.55 |
| Bluffton | 3 | Ohio | 3,868 | 3,962 | -0.59% | 1,047 | 3.69 |
| Leipsic | 4 | Ohio | 2,166 | 2,186 | -0.23% | 588 | 3.68 |
| Columbus Grove | 5 | Ohio | 2,122 | 2,150 | -0.33% | 1,728 | 1.23 |
| Deshler | 6 | Ohio | 1,552 | 1,590 | -0.58% | 678 | 2.29 |
| Kalida | 7 | Ohio | 1,459 | 1,453 | 0.14% | 868 | 1.68 |
| Pandora | 8 | Ohio | 1,197 | 1,199 | 0% | 1,123 | 1.07 |
| Continental | 9 | Ohio | 1,085 | 1,101 | -0.37% | 906 | 1.20 |
| Ottoville | 10 | Ohio | 982 | 968 | 0.41% | 1,037 | 0.95 |
| Glandorf | 11 | Ohio | 979 | 965 | 0.41% | 564 | 1.74 |
| Middle Point | 12 | Ohio | 560 | 570 | -0.36% | 1,029 | 0.54 |
| Oakwood | 13 | Ohio | 538 | 548 | -0.37% | 766 | 0.70 |
| Fort Jennings | 14 | Ohio | 537 | 525 | 0.56% | 954 | 0.56 |
| Grover Hill | 15 | Ohio | 380 | 382 | 0% | 1,377 | 0.28 |
| Beaverdam | 16 | Ohio | 310 | 320 | -0.64% | 492 | 0.63 |
| Melrose | 17 | Ohio | 226 | 230 | -0.44% | 264 | 0.86 |
| Mount Cory | 18 | Ohio | 218 | 224 | -0.46% | 565 | 0.39 |
| West Leipsic | 19 | Ohio | 218 | 220 | 0% | 876 | 0.25 |
| Dupont | 20 | Ohio | 207 | 209 | 0% | 227 | 0.91 |
| Cloverdale | 21 | Ohio | 170 | 172 | 0% | 276 | 0.62 |
| Gilboa | 22 | Ohio | 166 | 168 | 0% | 1,267 | 0.13 |
| Miller City | 23 | Ohio | 130 | 132 | 0% | 328 | 0.40 |
| New Bavaria | 24 | Ohio | 85 | 87 | 0% | 1,214 | 0.07 |
| Vaughnsville | 25 | Ohio | 75 | 271 | -35.9% | 439 | 0.17 |
| Belmore | 26 | Ohio | 60 | 62 | 0% | 135 | 0.44 |
Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.
Delphos is the largest city in Putnam County.
Belmore is the smallest city in Putnam County.
There are 26 cities in Putnam County, Ohio.