Shelby County, Iowa ZIP Codes

10 ZIP Codes

Zip Code
City
Population ↓
51537Harlan6,382
51570Shelby1,118
51531Elk Horn889
51530Earling809
51565Portsmouth516
51562Panama506
51446Irwin499
51527Defiance362
51578Westphalia116
51447Kirkman113

Overview of ZIP Codes in Shelby 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.
10
ZIP Codes

The data shown reflect ZCTAs from the US Census. As of 2025, there are 10 ZCTAs in Shelby County, Iowa (US Census).

Sources

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

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