US Gazetteer > Arkansas Gazetteer > Arkansas ZIP Codes > County ZIP Codes > Union ZIP Codes

ZIP Codes in Union County with Associated Cities & Towns

Calion   71724
El Dorado   71730
El Dorado   71731
El Dorado   71768
 Huttig   71747
Junction City   71749
Lawson   71750
Mount Holly   71758
 Norphlet   71759
Smackover   71762
Strong   71765
Urbana   71768

ZIP Codes - Key Concepts

  1. ZIP Codes are categories for grouping mailing addresses and are not exact geographic regions.
  2. The centroid of a ZIP Code may be in one County and the associated city/town in another.
  3. In rural areas, a single ZIP Code may be used for cities and towns in several different Counties.
  4. ZIP Code "areas" can overlap, be subsets of each other, or be artificial constructs with no geographic area.
  5. ZIP Codes are only loosely tied to cities.