ZIP codes

ZIP codes in Lafayette Parish, Louisiana

Lafayette Parish has 14 ZIP codes. 6 lie entirely inside it and 8 are shared with neighboring counties, so part of their land and their people are elsewhere. About 250,595 people live in the parts inside it (ACS 2020–2024).

By the All Map Tools Team

ZIP codes: 14; 2 more just touch the border (under 1% of their land)
Entirely inside: 6; 99% or more of their land
Shared with other counties: 8; Most with Acadia Parish (3)
Most populated ZIP: 70506; 42,318 people · Lafayette
Least populated ZIP: 70558; 24 people · Milton
Largest ZIP by land: 70592; 42 sq mi · Youngsville

Map of the ZIP codes in Lafayette Parish

Entirely in the county (99% or more of its land)
Shared, mostly in this county
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 Lafayette Parish

14 ZIP codes in Lafayette Parish, LA, by number
ZIP code	Main city	Population	Land in the county	Residents in the county
70501	Lafayette	26,465	100%	26,465
70503	Lafayette	28,643	100%	28,643
70506	Lafayette	42,318	100%	42,318
70507	Lafayette	20,096	100%	20,096
70508	Lafayette	40,592	100%	40,592
70517	Breaux Bridge	26,024	1.1%	≈ 801
70518	Broussard	17,263	51%	≈ 14,721
70520	Carencro	20,390	97%	≈ 20,127
70529	Duson	12,949	97%	≈ 12,742
70555	Maurice	8,759	3.0%	≈ 1,147
70558	Milton	24	100%	24
70578	Rayne	16,432	18%	≈ 3,353
70583	Scott	8,386	86%	≈ 7,960
70592	Youngsville	32,167	74%	≈ 30,690

They also touch the county with under 1% of their land, so they aren’t counted: 70525 and 70560.

ZIP codes shared with other counties

These 8 ZIP codes have part of their land in another county. The first figure is the share of their land in Lafayette Parish; then, where the rest lies.

70517 (Breaux Bridge): 1.1% here; 99% in St. Martin Parish.
70518 (Broussard): 51% here; 45% in St. Martin Parish and 3.2% in Iberia Parish.
70520 (Carencro): 97% here; 3.3% in St. Landry Parish.
70529 (Duson): 97% here; 2.1% in Acadia Parish.
70555 (Maurice): 3.0% here; 97% in Vermilion Parish.
70578 (Rayne): 18% here; 68% in Acadia Parish and 14% in Vermilion Parish.
70583 (Scott): 86% here; 14% in Acadia Parish.
70592 (Youngsville): 74% here; 24% in Vermilion Parish and 1.9% in Iberia 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 Lafayette (5), Breaux Bridge (1), Broussard (1), Carencro (1), Duson (1), and Maurice (1); 10 places in all.

All 14 start with the same three digits, 705: the prefix of the USPS sorting center that handles them.

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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