There are 7 zip codes in Johnson County, Indiana. The most populated is 46143, located in Greenwood. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
4614358,153Greenwood
4613134,801Franklin
4614234,676Greenwood
4618412,771Whiteland
461069,616Bargersville
461815,186Trafalgar
46162267Needham

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