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ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2022

ZIP Codes for City of Hammond, IN

Hammond, IN Covers 7 ZIP Codes

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 46320StandardLake15,508219
ZIP Code 46321StandardLake23,603219
ZIP Code 46322StandardLake23,727219
ZIP Code 46323StandardLake22,743219
ZIP Code 46324StandardLake23,165219
ZIP Code 46325P.O. BoxLake0219
ZIP Code 46327StandardLake12,153219

Timezone(s):Central (GMT -06:00)
Counties:LAKE, IN
Population:80,830 (More Details)
Male Population:39,628
Female Population:41,202
Median Age:33
ZIP Codes:7
Area Codes:1
Total Area:627 square miles (county)
Land Area:499 square miles (county)
Water Area:128 square miles (county)

Hammond, IN Demographic Information *

Total population80,830
Male population39,628
Female population41,202
Median age (years)33.3
White Population47,984
Black Population18,224
Indian Population411
Asian Population804
Hawaiian Population24
Hispanic Population27,563
Median age (Male)32.5
Median age (Female)34.1
Total households29,949
Family households (families)19,222
Average household size2.67
Average family size3.36
Total housing units32,945
* Demographic data is based on 2010 Census. Products


  1. U.S. Postal Service [Last Updated: 5/1/2022],
  2. Internal Data Creation [Last Updated: 5/1/2022],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],