Identifiers: city · CDP · village
| Rank | Community | Population |
|---|---|---|
| 1 | Columbus (city), OH | 905,748 |
| 2 | Dublin (city), OH | 49,328 |
| 3 | Delaware (city), OH | 41,302 |
| 4 | Grove City (city), OH | 41,252 |
| 5 | Westerville (city), OH | 39,190 |
| 6 | Hilliard (city), OH | 37,114 |
| 7 | Upper Arlington (city), OH | 36,800 |
| 8 | Gahanna (city), OH | 35,726 |
| 9 | Whitehall (city), OH | 20,127 |
| 10 | Worthington (city), OH | 14,786 |
| 11 | Powell (city), OH | 14,163 |
| 12 | Bexley (city), OH | 13,928 |
| 13 | New Albany (city), OH | 10,825 |
| 14 | Lincoln Village (CDP), OH | 9,702 |
| 15 | Grandview Heights (city), OH | 8,085 |
| 16 | Sunbury (city), OH | 6,614 |
| 17 | Johnstown (city), OH | 5,182 |
| 18 | Huber Ridge (CDP), OH | 4,940 |
| 19 | Plain City (village), OH | 4,065 |
| 20 | New California (CDP), OH | 2,225 |