8 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 71203 | Monroe | 38,354 |
| 71291 | West Monroe | 35,269 |
| 71202 | Monroe | 25,444 |
| 71292 | West Monroe | 22,935 |
| 71201 | Monroe | 21,782 |
| 71225 | Calhoun | 6,354 |
| 71209 | Monroe | 1,264 |
| 71212 | Monroe | 0 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 8 ZCTAs in Ouachita Parish, Louisiana (US Census).