McClain County, Oklahoma ZIP Codes

Zip Code
City
Population ↓
73065Newcastle11,685
73080Purcell10,773
73093Washington3,767
73095Wayne1,748
74831Byars743
73031Dibble44

Overview of ZIP Codes in McClain 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 McClain County, Oklahoma (US Census).

Sources

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

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