Identifiers: city · CDP
| Rank | Community | Population |
|---|---|---|
| 1 | Cincinnati (city), OH | 309,317 |
| 2 | Hamilton (city), OH | 63,399 |
| 3 | Middletown (city), OH | 50,987 |
| 4 | Fairfield (city), OH | 44,907 |
| 5 | Mason (city), OH | 34,792 |
| 6 | Forest Park (city), OH | 20,189 |
| 7 | White Oak (CDP), OH | 19,541 |
| 8 | Norwood (city), OH | 19,043 |
| 9 | Monroe (city), OH | 15,412 |
| 10 | Bridgetown (CDP), OH | 14,731 |
| 11 | Sharonville (city), OH | 14,117 |
| 12 | Blue Ash (city), OH | 13,394 |
| 13 | Loveland (city), OH | 13,307 |
| 14 | Trenton (city), OH | 13,021 |
| 15 | Harrison (city), OH | 12,563 |
| 16 | Finneytown (CDP), OH | 12,399 |
| 17 | Dent (CDP), OH | 12,301 |
| 18 | Monfort Heights (CDP), OH | 12,070 |
| 19 | Springdale (city), OH | 11,007 |
| 20 | Northbrook (CDP), OH | 10,912 |