ZIP codes

ZIP codes in Livingston Parish, Louisiana

Livingston Parish has 15 ZIP codes. 8 lie entirely inside it and 7 are shared with neighboring counties, so part of their land and their people are elsewhere. About 147,315 people live in the parts inside it (ACS 2020–2024).

By the All Map Tools Team

ZIP codes: 15; 3 more just touch the border (under 1% of their land)
Entirely inside: 8; 99% or more of their land
Shared with other counties: 7; Most with St. Helena Parish (4)
Most populated ZIP: 70726; 63,575 people · Denham Springs
Least populated ZIP: 70733; 1,715 people · French Settlement; 1 more with nobody living there
Largest ZIP by land: 70754; 127 sq mi · Livingston

Map of the ZIP codes in Livingston 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 Livingston Parish

15 ZIP codes in Livingston Parish, LA, by number
ZIP code	Main city	Population	Land in the county	Residents in the county
70403	Hammond	30,173	14%	≈ 981
70443	Independence	9,006	33%	≈ 2,727
70449	—	3,092	99.5%	≈ 3,079
70453	—	1,162	5.5%	≈ 121
70462	Killian	5,593	99.3%	≈ 5,485
70466	Natalbany	10,148	4.8%	≈ 383
70706	Watson	21,833	73%	≈ 21,408
70711	Albany	5,612	100%	5,612
70726	Denham Springs	63,575	100%	63,575
70733	French Settlement	1,715	100%	1,715
70744	Montpelier	6,070	85%	≈ 5,730
70754	Livingston	11,641	100%	11,641
70774	Sorrento	10,041	19%	≈ 874
70785	Walker	23,921	100%	23,921
70786	Watson	0	100%	0

They also touch the county with under 1% of their land, so they aren’t counted: 70401, 70422, and 70769.

ZIP codes shared with other counties

These 7 ZIP codes have part of their land in another county. The first figure is the share of their land in Livingston Parish; then, where the rest lies.

70403 (Hammond): 14% here; 86% in Tangipahoa Parish.
70443 (Independence): 33% here; 57% in Tangipahoa Parish and 9.8% in St. Helena Parish.
70453: 5.5% here; 94% in St. Helena Parish.
70466 (Natalbany): 4.8% here; 95% in Tangipahoa Parish.
70706 (Watson): 73% here; 27% in St. Helena Parish.
70744 (Montpelier): 85% here; 15% in St. Helena Parish.
70774 (Sorrento): 19% here; 81% in Ascension 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 Watson (2), Albany (1), Denham Springs (1), French Settlement (1), Hammond (1), and Independence (1); 12 places in all.

They start with 2 different three-digit prefixes, one per USPS sorting center: 704 and 707.

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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