| Zip Code | City | Population ↓ |
|---|---|---|
| 71203 | Monroe | 40,063 |
| 71291 | West Monroe | 34,606 |
| 71202 | Monroe | 26,680 |
| 71292 | West Monroe | 21,939 |
| 71201 | Monroe | 20,817 |
| 71225 | Calhoun | 7,827 |
| 71209 | Monroe | 1,399 |
| 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).