54 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 45238 | Cincinnati | 48,351 |
| 45231 | Cincinnati | 40,463 |
| 45211 | Cincinnati | 38,049 |
| 45215 | Cincinnati | 30,586 |
| 45239 | Cincinnati | 29,607 |
| 45240 | Cincinnati | 29,600 |
| 45244 | Cincinnati | 28,511 |
| 45230 | Cincinnati | 27,501 |
| 45236 | Cincinnati | 24,513 |
| 45241 | Cincinnati | 23,955 |
| 45247 | Cincinnati | 23,617 |
| 45242 | Cincinnati | 22,623 |
| 45248 | Cincinnati | 22,576 |
| 45255 | Cincinnati | 22,313 |
| 45224 | Cincinnati | 21,900 |
| 45030 | Harrison | 21,640 |
| 45212 | Cincinnati | 21,526 |
| 45237 | Cincinnati | 20,903 |
| 45251 | Cincinnati | 20,254 |
| 45219 | Cincinnati | 20,012 |
| 45227 | Cincinnati | 18,893 |
| 45205 | Cincinnati | 18,651 |
| 45208 | Cincinnati | 17,943 |
| 45202 | Cincinnati | 17,869 |
| 45243 | Cincinnati | 16,103 |
| 45233 | Cincinnati | 15,981 |
| 45002 | Cleves | 15,413 |
| 45249 | Cincinnati | 14,490 |
| 45223 | Cincinnati | 14,182 |
| 45220 | Cincinnati | 14,109 |
| 45229 | Cincinnati | 13,529 |
| 45246 | Cincinnati | 13,527 |
| 45213 | Cincinnati | 11,139 |
| 45209 | Cincinnati | 10,570 |
| 45206 | Cincinnati | 10,299 |
| 45225 | Cincinnati | 9,583 |
| 45216 | Cincinnati | 9,569 |
| 45214 | Cincinnati | 8,630 |
| 45204 | Cincinnati | 8,412 |
| 45207 | Cincinnati | 6,983 |
| 45217 | Cincinnati | 6,454 |
| 45232 | Cincinnati | 6,363 |
| 45226 | Cincinnati | 5,796 |
| 45252 | Cincinnati | 4,684 |
| 45052 | North Bend | 4,236 |
| 45218 | Cincinnati | 3,836 |
| 45203 | Cincinnati | 2,436 |
| 45174 | Terrace Park | 2,321 |
| 45001 | Addyston | 904 |
| 45033 | Hooven | 377 |
| 45051 | Mount Saint Joseph | 334 |
| 45111 | Camp Dennison | 265 |
| 45041 | Miamitown | 118 |
| 45267 | Cincinnati | 2 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 54 ZCTAs in Hamilton County, Ohio (US Census).