There are 12 zip codes in Grant County, Indiana. The most populated is 46953, located in Marion. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
4695323,334Marion
4695218,101Marion
469336,417Gas City
469895,621Upland
469284,710Fairmount
469382,385Jonesboro
469911,879Van Buren
469861,671Swayzee
469191,527Converse
469871,053Sweetser
46957407Matthews
46930219Fowlerton

Zip Codes in Grant County, Indiana by Population (2024)