Identifiers: city · village · CDP
| Rank | Community | Population |
|---|---|---|
| 1 | Mansfield (city), OH | 47,534 |
| 2 | Ashland (city), OH | 19,225 |
| 3 | Mount Vernon (city), OH | 16,956 |
| 4 | Galion (city), OH | 10,453 |
| 5 | Shelby (city), OH | 9,282 |
| 6 | Ontario (city), OH | 6,656 |
| 7 | Lexington (village), OH | 4,848 |
| 8 | Crestline (village), OH | 4,525 |
| 9 | Mount Gilead (village), OH | 3,503 |
| 10 | Loudonville (village), OH | 2,786 |
| 11 | Fredericktown (village), OH | 2,648 |
| 12 | Bellville (village), OH | 1,963 |
| 13 | Roseland (CDP), OH | 1,495 |
| 14 | West Salem (village), OH | 1,430 |
| 15 | Candlewood Lake (CDP), OH | 1,329 |
| 16 | Lincoln Heights (CDP), OH | 1,039 |
| 17 | Butler (village), OH | 941 |
| 18 | Perrysville (village), OH | 729 |
| 19 | Lucas (village), OH | 589 |
| 20 | Jeromesville (village), OH | 531 |
Identifiers: city · village · CDP
| Rank | Community | Population |
|---|---|---|
| 1 | Mansfield (city), OH | 47,534 |
| 2 | Ashland (city), OH | 19,225 |
| 3 | Mount Vernon (city), OH | 16,956 |
| 4 | Galion (city), OH | 10,453 |
| 5 | Shelby (city), OH | 9,282 |
| 6 | Ontario (city), OH | 6,656 |
| 7 | Lexington (village), OH | 4,848 |
| 8 | Crestline (village), OH | 4,525 |
| 9 | Mount Gilead (village), OH | 3,503 |
| 10 | Loudonville (village), OH | 2,786 |
| 11 | Fredericktown (village), OH | 2,648 |
| 12 | Bellville (village), OH | 1,963 |
| 13 | Roseland (CDP), OH | 1,495 |
| 14 | West Salem (village), OH | 1,430 |
| 15 | Candlewood Lake (CDP), OH | 1,329 |
| 16 | Lincoln Heights (CDP), OH | 1,039 |
| 17 | Butler (village), OH | 941 |
| 18 | Perrysville (village), OH | 729 |
| 19 | South Mount Vernon (CDP), OH | 714 |
| 20 | Lucas (village), OH | 589 |