Allen County, Kansas ZIP Codes

Zip Code
City
Population ↓
66749Iola7,448
66748Humboldt2,830
66755Moran890
66751La Harpe590
66732Elsmore294
66772Savonburg288
66742Gas30

Overview of ZIP Codes in Allen 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 Allen County, Kansas (US Census).

Sources

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

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