Johnson County, Indiana ZIP Codes

Zip Code
City
Population ↓
46143Greenwood61,803
46131Franklin34,647
46142Greenwood34,348
46184Whiteland13,304
46106Bargersville10,159
46181Trafalgar4,964
46162Needham227

Overview of ZIP Codes in Johnson 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.
7
ZIP Codes

The data shown reflect ZCTAs from the US Census. As of 2025, there are 7 ZCTAs in Johnson County, Indiana (US Census).

Sources

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

Recommended Reading