ZIP codes

ZIP codes in Ouachita Parish, Louisiana

Ouachita Parish has 14 ZIP codes. 8 lie entirely inside it and 6 are shared with neighboring counties, so part of their land and their people are elsewhere. About 160,240 people live in the parts inside it (ACS 2020–2024).

By the All Map Tools Team

ZIP codes: 14; 1 more just touches the border (under 1% of their land)
Entirely inside: 8; 99% or more of their land
Shared with other counties: 6; Most with Jackson Parish (2)
Most populated ZIP: 71203; 38,354 people · Monroe
Least populated ZIP: 71209; 1,264 people · Monroe; 1 more with nobody living there
Largest ZIP by land: 71292; 154 sq mi · Brownsville

Map of the ZIP codes in Ouachita Parish

Entirely in the county (99% or more of its land)
Shared, mostly in other counties
Neighboring counties

Open in the interactive tool

Each area is a ZIP code with its number where it fits. Hover over one to see its name.

All ZIP codes in Ouachita Parish

14 ZIP codes in Ouachita Parish, LA, by number
ZIP code	Main city	Population	Land in the county	Residents in the county
71201	Monroe	21,782	100%	21,782
71202	Monroe	25,444	100%	25,444
71203	Monroe	38,354	100%	38,354
71209	Monroe	1,264	100%	1,264
71212	Monroe	0	100%	0
71225	Calhoun	6,354	100%	6,354
71227	Choudrant	3,783	2.8%	≈ 402
71229	Collinston	1,331	9.2%	≈ 458
71234	Downsville	5,396	7.5%	≈ 1,346
71238	Eros	2,374	35%	≈ 1,863
71280	Sterlington	5,269	22%	≈ 3,521
71291	Claiborne	35,269	100%	35,269
71292	Brownsville	22,935	100%	22,935
71418	Banks Springs	5,233	3.0%	≈ 426

They also touch the county with under 1% of their land, so they aren’t counted: 71220.

ZIP codes shared with other counties

These 6 ZIP codes have part of their land in another county. The first figure is the share of their land in Ouachita Parish; then, where the rest lies.

71227 (Choudrant): 2.8% here; 60% in Lincoln Parish and 37% in Jackson Parish.
71229 (Collinston): 9.2% here; 91% in Morehouse Parish.
71234 (Downsville): 7.5% here; 86% in Union Parish and 6.4% in Lincoln Parish.
71238 (Eros): 35% here; 65% in Jackson Parish.
71280 (Sterlington): 22% here; 73% in Union Parish and 5.4% in Morehouse Parish.
71418 (Banks Springs): 3.0% here; 84% in Caldwell Parish, 7.0% in Richland Parish, and 5.9% in Catahoula Parish.

Cities and prefixes

By main city (the city, town or CDP each ZIP shares the most land with), the ones with the most are Monroe (5), Banks Springs (1), Brownsville (1), Calhoun (1), Choudrant (1), and Claiborne (1); 10 places in all.

They start with 2 different three-digit prefixes, one per USPS sorting center: 712 and 714.

Neighboring counties

Each one with its ZIP codes. Those without a page of their own open in the tool.

Tools for this county

ZIP codes by county or city The same ZIP codes on an interactive map, with the list as CSV or to copy County map with cities Its cities, towns and CDPs with their population ZIP codes in a radius The ZIP codes within 10 miles of its center, or any distance you like

Sources

U.S. Census Bureau, 2020 ZCTA to County, ZCTA to Place and ZCTA to Census Tract Relationship Files (and the 2022 County Subdivision to ZCTA file for Connecticut). Public domain.
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, table B01003 (population of each ZIP code, census tract and Connecticut town). Public domain.
U.S. Census Bureau, Vintage 2025 Population Estimates (county population) and 2025 Gazetteer Files (land area and interior point of each ZIP code). Public domain.
U.S. Census Bureau, Cartographic Boundary Files: ZCTAs 2020 and counties 2025, 1:500,000; county adjacency file 2025. Public domain.

How we count. ZIP codes here are the Census Bureau’s ZIP Code Tabulation Areas (ZCTAs), the areas it draws to match USPS ZIP codes; ZIPs with no area of their own (PO boxes, single buildings) aren’t included. A ZIP can cross county lines: “Land in the county” is the exact share of its land inside, from the Census relationship files. “Residents in the county” is the whole ZIP for those entirely inside; for shared ones it’s an estimate, spreading the people of each census tract over the land it shares with the ZIP. Population: ACS 2020–2024. Methodology.

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