8 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 71203 | Monroe | 38,770 |
| 71291 | West Monroe | 35,345 |
| 71202 | Monroe | 26,791 |
| 71292 | West Monroe | 21,866 |
| 71201 | Monroe | 21,084 |
| 71225 | Calhoun | 7,450 |
| 71209 | Monroe | 1,366 |
| 71212 | Monroe | 0 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 8 ZCTAs in Ouachita Parish, Louisiana (US Census).