County ZIP codes · Louisiana · FIPS 22073
Ouachita Parish, LA ZIP Codes
Ouachita Parish, Louisiana has 22 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 14 residential and 8 for PO boxes or a single organization. 8 of the residential ones lie mainly in Ouachita Parish and 6 mainly in a neighboring county; 6 cross the county line. Median household income ranges from $28,213 in 71202 (Monroe) to $78,531 in 71280 (Sterlington) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Ouachita Parish?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $51,355 and $71,639.
They carry 9 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 14 residential ZIP codes in Ouachita Parish
8 ZIP codes lie mainly in Ouachita Parish; 6 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 71203 | Monroe | 38,354 | 324 | $52k | $185k | 100% |
| 71291 | West Monroe | 35,269 | 539 | $72k | $227k | 100% |
| 71202 | Monroe | 25,444 | 220 | $28k | $84k | 100% |
| 71292 | West Monroe | 22,935 | 149 | $51k | $138k | 100% |
| 71201 | Monroe | 21,782 | 1,464 | $65k | $264k | 100% |
| 71225 | Calhoun | 6,354 | 106 | $75k | $210k | 100% |
| 71209 | Monroe | 1,264 | 24,308 | – | – | 100% |
| 71212 | Monroe | no residents | 0 | – | – | 100% |
Partly in Ouachita Parish
| In this county | ||||||
|---|---|---|---|---|---|---|
| 71238 | Eros | 2,374 | 22 | $34k | $146k | 35% |
| 71280 | Sterlington | 5,269 | 89 | $79k | $249k | 22% |
| 71229 | Collinston | 1,331 | 24 | $83k | $156k | 9% |
| 71234 | Downsville | 5,396 | 46 | $85k | $156k | 8% |
| 71418 | Columbia | 5,233 | 15 | $41k | $92k | 3% |
| 71227 | Choudrant | 3,783 | 33 | $64k | $256k | 3% |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).
Which ZIP codes cross the county line?
6 ZIP codes of Ouachita Parish extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Ouachita | Elsewhere |
|---|---|---|
| 71234 | 8% | Union Parish 86%; Lincoln Parish 6% |
| 71280 | 22% | Union Parish 73%; Morehouse Parish 5% |
| 71418 | 3% | Caldwell Parish 84%; Richland Parish 7%; Catahoula Parish 6% |
| 71227 | 3% | Lincoln Parish 60%; Jackson Parish 37% |
| 71238 | 35% | Jackson Parish 65% |
| 71229 | 9% | Morehouse Parish 91% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Ouachita Parish's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Ouachita Parish's ZIP codes use 2 prefixes: 712 and 714.
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.