Hammond ZIP Codes

List of Zip Codes of Hammond

The following table lists ZIP Codes associated with Hammond, Indiana, based on ZIP Code Tabulation Area (ZCTA) data from the U.S. Census Bureau.


S.N. Zip Code Latitude Longitude County Population Density
1 46320 41.60893 -87.49754 Lake 14,097 1168.8
2 46323 41.58961 -87.45323 Lake 23,184 1443.5
3 46324 41.58324 -87.50155 Lake 21,433 1898.1
4 46327 41.64048 -87.50677 Lake 10,797 906.0


About Hammond Indiana Zip Codes

The city of Hammond in Indiana (IN) is served by approximately 4 ZIP Codes. These codes cover residential neighborhoods, business districts, and surrounding localities that use the city name in their mailing address.

Based on ZIP-level population estimates, the combined population covered by these ZIP Codes is around 69,511 people. Population density can vary significantly from one ZIP Code to another, reflecting the mix of dense urban blocks, commercial corridors, and lower-density residential areas.

The ZIP Codes associated with Hammond fall within county jurisdictions such as Lake. Each county manages local services, land use, and administration for the areas corresponding to its ZIP Codes.

Most ZIP codes for Hammond, Indiana follow the America/Chicago time zone.