Audubon County, Iowa ZIP Codes

Zip Code
City
Population ↓
50025Audubon3,148
50076Exira1,301
51543Kimballton478
50042Brayton226
50117Hamlin128
50110Gray29

Overview of ZIP Codes in Audubon 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.
6
ZIP Codes

The data shown reflect ZCTAs from the US Census. As of 2025, there are 6 ZCTAs in Audubon County, Iowa (US Census).

Sources

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

Recommended Reading