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US ZIP Code Profile

ZIP Code 70401
Hammond, Louisiana

ZIP code 70401 is in Hammond, located in Tangipahoa County, Louisiana, within the Hammond metro area. Its 2020 Census population was 21,014. The estimated median adjusted gross income per tax return is $35,050, and about 4% of filers report $200,000 or more.

2020 Population
21,014
Census ZCTA
County
Tangipahoa
FIPS 22105
Median income (est.)
$35,050
IRS SOI 2022
Land Area
34.985 mi²
+ 0.185 mi² water

01Location & Geography

Authoritative geographic identifiers from the U.S. Census Bureau, ANSI, and FIPS standards.

Primary CityHammond, LA
CountyTangipahoa County (FIPS 22105)
StateLouisiana (FIPS 22)
Metro Area (MSA)Hammond, LA Metro Area (25220)
Census Region / DivisionSouth Region · West South Central Division
Coordinates30.533552, -90.455444
Land / Water Area34.985 mi² land · 0.185 mi² water

02Income & Economics

Distribution of the 7,800 individual tax returns filed in 70401 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
39.7%
$25K–$50K
25.5%
$50K–$75K
13.0%
$75K–$100K
7.6%
$100K–$200K
10.5%
$200K+
3.7%
The $200,000+ bracket accounts for 28% of 70401's total adjusted gross income, from 4% of returns — a concentration that drives the gap between the median ($35,050) and the average.
Estimated median = median adjusted gross income per tax return, interpolated from IRS SOI brackets. Differs from U.S. Census household income.

03Income Over Time

Year-over-year change in 70401's IRS income metrics, 2020–2022.

Median income (2021→2022)
$35,050
▲ 9.8%
Filers earning $200K+
3.7%
▼ 0.2 pt
Total filers
7,800
▼ 1.0%
GET /zipc/v2/zipcodes/70401/soi?year=… $29K 2020 $32K 2021 $35K 2022
Median = adjusted gross income per return, interpolated from IRS SOI brackets. Figures are nominal (not inflation-adjusted).

04Population Trend

Decennial U.S. Census population for the 70401 ZCTA.

2000
18,900
 
2010
20,415
▲ +8.0%
2020
21,014
▲ +2.9%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 70401. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 70401

Hammond and its immediate neighbors, sorted by distance.

3 mi
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Distance from 70401 to any ZIP

Enter a 5-digit ZIP to calculate the distance.

06USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number213978
City AliasesHammond

07Frequently Asked Questions

What county is ZIP code 70401 in?

ZIP code 70401 is in Tangipahoa County, Louisiana (county FIPS code 22105).

What city is ZIP code 70401?

The primary USPS city for 70401 is Hammond, LA.

What metro area (MSA) is 70401 in?

70401 is part of the Hammond, LA Metro Area (MSA code 25220).

What is the population of ZIP code 70401?

The 2020 Census population of 70401 was 21,014 residents.

What is the median income in ZIP code 70401?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 70401 is about $35,050, with around 4% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.