Grant County, Indiana ZIP Codes

12 ZIP Codes

Zip Code
City
Population ↓
46953Marion23,372
46952Marion18,189
46933Gas City6,536
46989Upland5,385
46928Fairmount4,553
46938Jonesboro2,494
46919Converse1,968
46986Swayzee1,617
46991Van Buren1,594
46987Sweetser1,055
46957Matthews443
46930Fowlerton185

Overview of ZIP Codes in Grant County

ZCTAs are geographic areas created by the US Census Bureau to approximate the delivery areas of ZIP Codes for statistical analysis. While ZCTAs use the same five-digit codes as ZIP Codes, they represent defined geographic areas that may not exactly match the mail delivery routes of ZIP Codes.
12
ZIP Codes

The data shown reflect ZCTAs from the US Census. As of 2025, there are 12 ZCTAs in Grant County, Indiana (US Census).

Sources

  1. US Census: 2025 Gazetteer Files
  2. US Census: ZIP Code Tabulation Areas (ZCTAs)

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