Morrow County, Oregon ZIP Codes

Zip Code
City
Population ↓
97818Boardman5,610
97844Irrigon3,701
97836Heppner1,998
97843Ione805
97839Lexington116

Overview of ZIP Codes in Morrow 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.
5
ZIP Codes

The data shown reflect ZCTAs from the US Census. As of 2025, there are 5 ZCTAs in Morrow County, Oregon (US Census).

Sources

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

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