Eau Claire County, Wisconsin ZIP Codes

7 ZIP Codes

Zip Code
City
Population ↓
54703Eau Claire44,153
54701Eau Claire43,014
54720Altoona8,947
54722Augusta4,277
54742Fall Creek4,255
54738Eleva3,784
54741Fairchild1,664

Overview of ZIP Codes in Eau Claire 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 Eau Claire County, Wisconsin (US Census).

Sources

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

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