Posey County, Indiana ZIP Codes

4 ZIP Codes

Zip Code
City
Population ↓
47620Mount Vernon12,361
47638Wadesville3,633
47633Poseyville2,602
47631New Harmony2,148

Overview of ZIP Codes in Posey 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.
4
ZIP Codes

The data shown reflect ZCTAs from the US Census. As of 2025, there are 4 ZCTAs in Posey County, Indiana (US Census).

Sources

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

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