Winnebago County, Iowa ZIP Codes

7 ZIP Codes

Zip Code
City
Population ↓
50436Forest City5,771
50450Lake Mills2,952
50424Buffalo Center1,441
50478Thompson737
50453Leland537
50473Scarville219
50465Rake190

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

Sources

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

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