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US ZIP Code Profile

ZIP Code 46323
Hammond, Indiana

ZIP code 46323 is in Hammond, located in Lake County, Indiana, within the Chicago-Naperville-Elgin metro area. Its 2020 Census population was 22,510. The estimated median adjusted gross income per tax return is $38,314, and about 1% of filers report $200,000 or more.

2020 Population
22,510
Census ZCTA
County
Lake
FIPS 18089
Median income (est.)
$38,314
IRS SOI 2022
Land Area
6.175 mi²
+ 0.042 mi² water

01Location & Geography

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

Primary CityHammond, IN
CountyLake County (FIPS 18089)
StateIndiana (FIPS 18)
Metro Area (MSA)Chicago-Naperville-Elgin, IL-IN-WI Metro Area (16980)
Census Region / DivisionMidwest Region · East North Central Division
Coordinates41.589436, -87.45373
Land / Water Area6.175 mi² land · 0.042 mi² water

02Income & Economics

Distribution of the 9,990 individual tax returns filed in 46323 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
33.6%
$25K–$50K
30.7%
$50K–$75K
17.0%
$75K–$100K
9.2%
$100K–$200K
8.6%
$200K+
0.8%
The $200,000+ bracket accounts for 9% of 46323's total adjusted gross income, from 1% of returns — a concentration that drives the gap between the median ($38,314) 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 46323's IRS income metrics, 2020–2022.

Median income (2021→2022)
$38,314
▲ 7.9%
Filers earning $200K+
0.8%
▲ 0.2 pt
Total filers
9,990
▼ 1.5%
GET /zipc/v2/zipcodes/46323/soi?year=… $33K 2020 $36K 2021 $38K 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 46323 ZCTA.

2000
23,624
 
2010
22,743
▼ -3.7%
2020
22,510
▼ -1.0%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 46323. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 46323

Hammond and its immediate neighbors, sorted by distance.

3 mi
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Distance from 46323 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 Number173586
City AliasesHammond, Hessville

07Frequently Asked Questions

What county is ZIP code 46323 in?

ZIP code 46323 is in Lake County, Indiana (county FIPS code 18089).

What city is ZIP code 46323?

The primary USPS city for 46323 is Hammond, IN.

What metro area (MSA) is 46323 in?

46323 is part of the Chicago-Naperville-Elgin, IL-IN-WI Metro Area (MSA code 16980).

What is the population of ZIP code 46323?

The 2020 Census population of 46323 was 22,510 residents.

What is the median income in ZIP code 46323?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 46323 is about $38,314, with around 1% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.