Decatur County, Iowa ZIP Codes

7 ZIP Codes

Zip Code
City
Population ↓
50140Lamoni2,842
50144Leon2,692
50065Davis City517
50103Garden Grove453
50108Grand River376
50067Decatur354
50262Van Wert263

Overview of ZIP Codes in Decatur 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 Decatur County, Iowa (US Census).

Sources

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

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