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Zip Code 70401 — Hammond, LA

70401 is a ZIP Code associated with Hammond, LA, located within Tangipahoa. The postal region supports an estimated population of 21,221 residents across Data Pending housing units, with a population density of 236.1 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (30.528100, -90.454720)

Data Metric	Local Statistic
Postal / Zip Code	70401
Primary City	Hammond
State / Province	LA
County	Tangipahoa
Total Population	21,221
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	236.1 people/sq mi
Timezone	America/Chicago

How 70401 Compares

Metric	ZIP 70401	Tangipahoa County	LA State Average
Population	21,221	144,482	4,611,457
Median Income	Data Pending	N/A	N/A
Population Density	236.1 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 70402	Hammond	1.2 mi	1,850	N/A
Zip 70451	Natalbany	2.2 mi	65	N/A
Zip 70403	Hammond	3.8 mi	30,173	N/A
Zip 70466	Tickfaw	4.0 mi	10,148	N/A
Zip 70455	Robert	8.1 mi	2,181	N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →