Porter County, Indiana ZIP Codes

9 ZIP Codes

Zip Code
City
Population ↓
46383Valparaiso42,183
46385Valparaiso40,856
46368Portage40,301
46304Chesterton28,307
46341Hebron10,048
46347Kouts4,951
46301Beverly Shores650
46393Wheeler216
46302Boone Grove29

Overview of ZIP Codes in Porter 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.
9
ZIP Codes

The data shown reflect ZCTAs from the US Census. As of 2025, there are 9 ZCTAs in Porter County, Indiana (US Census).

Sources

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

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