Identifiers: city · village · CDP
| Rank | Community | Population |
|---|---|---|
| 1 | Lima (city), OH | 35,579 |
| 2 | Van Wert (city), OH | 11,092 |
| 3 | Delphos (city), OH | 7,117 |
| 4 | Paulding (village), OH | 3,555 |
| 5 | Spencerville (village), OH | 2,198 |
| 6 | Elida (village), OH | 1,923 |
| 7 | Kalida (village), OH | 1,455 |
| 8 | Payne (village), OH | 1,192 |
| 9 | Rockford (village), OH | 1,051 |
| 10 | Convoy (village), OH | 1,012 |
| 11 | Ottoville (village), OH | 966 |
| 12 | Ohio City (village), OH | 651 |
| 13 | Mendon (village), OH | 628 |
| 14 | Middle Point (village), OH | 566 |
| 15 | Fort Jennings (village), OH | 525 |
| 16 | Cairo (village), OH | 517 |
| 17 | Grover Hill (village), OH | 382 |
| 18 | Gomer (CDP), OH | 345 |
| 19 | Beaverdam (village), OH | 319 |
| 20 | Vaughnsville (CDP), OH | 278 |