ZIP codes

ZIP codes in Tangipahoa Parish, Louisiana

Tangipahoa Parish has 18 ZIP codes. 10 lie entirely inside it and 8 are shared with neighboring counties, so part of their land and their people are elsewhere. About 138,495 people live in the parts inside it (ACS 2020–2024).

By the All Map Tools Team

ZIP codes: 18; 2 more just touch the border (under 1% of their land)
Entirely inside: 10; 99% or more of their land
Shared with other counties: 8; Most with Livingston Parish (3)
Most populated ZIP: 70454; 34,564 people · Ponchatoula
Least populated ZIP: 70451; 65 people · Natalbany
Largest ZIP by land: 70444; 245 sq mi · Kentwood

Map of the ZIP codes in Tangipahoa 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 Tangipahoa Parish

18 ZIP codes in Tangipahoa Parish, LA, by number
ZIP code	Main city	Population	Land in the county	Residents in the county
70401	Hammond	21,221	99.9%	≈ 21,220
70402	Hammond	1,850	100%	1,850
70403	Hammond	30,173	86%	≈ 29,192
70422	Amite City	15,399	64%	≈ 12,886
70433	Covington	41,876	6.8%	≈ 562
70435	Covington	22,475	4.0%	≈ 278
70436	—	104	100%	104
70437	Folsom	8,030	24%	≈ 969
70442	—	196	100%	196
70443	Independence	9,006	57%	≈ 6,008
70444	Kentwood	8,687	71%	≈ 7,524
70446	—	7,173	100%	7,173
70451	Natalbany	65	100%	65
70454	Ponchatoula	34,564	100%	34,564
70455	—	2,181	100%	2,181
70456	Roseland	3,193	100%	3,193
70465	Tangipahoa	522	100%	522
70466	Natalbany	10,148	95%	≈ 9,765

They also touch the county with under 1% of their land, so they aren’t counted: 70438 and 70462.

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 Tangipahoa Parish; then, where the rest lies.

70403 (Hammond): 86% here; 14% in Livingston Parish.
70422 (Amite City): 64% here; 36% in St. Helena Parish.
70433 (Covington): 6.8% here; 93% in St. Tammany Parish.
70435 (Covington): 4.0% here; 96% in St. Tammany Parish.
70437 (Folsom): 24% here; 76% in St. Tammany Parish.
70443 (Independence): 57% here; 33% in Livingston Parish and 9.8% in St. Helena Parish.
70444 (Kentwood): 71% here; 28% in St. Helena Parish and 1.1% in Washington Parish.
70466 (Natalbany): 95% here; 4.8% in Livingston 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 Hammond (3), Covington (2), Natalbany (2), Amite City (1), Folsom (1), and Independence (1); 10 places in all.

All 18 start with the same three digits, 704: 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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