Union County, Arkansas ZIP Codes

8 ZIP Codes

Zip Code
City
Population ↓
71730El Dorado29,760
71762Smackover2,929
71749Junction City2,787
71765Strong1,742
71747Huttig655
71759Norphlet243
71758Mount Holly150
71724Calion147

Overview of ZIP Codes in Union 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.
8
ZIP Codes

The data shown reflect ZCTAs from the US Census. As of 2025, there are 8 ZCTAs in Union County, Arkansas (US Census).

Sources

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

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