Louisa County, Iowa ZIP Codes

6 ZIP Codes

Zip Code
City
Population ↓
52738Columbus Junction3,398
52653Wapello3,083
52640Morning Sun1,274
52739Conesville788
52752Grandview413
52737Columbus City323

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

Sources

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

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