Union County, Arkansas
8 ZIP codes · 1,039.07 sq mi of land · FIPS 05139
| Population | 37,900 |
|---|---|
| State | Arkansas |
| FIPS code | 05139 |
| Time zone | Central |
| Land area | 1,039.07 sq mi |
| Center (lat, long) | 33.1682, -92.5981 |
Area codes in this area
These are the area codes that most often serve Union County (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.
Cities and towns (largest first)
ZIP codes in Union County
71724 Calion71730 El Dorado71747 Huttig71749 Junction City71758 Mount Holly71759 Norphlet71762 Smackover71765 Strong
Population: U.S. Census Bureau, ACS 5-year estimates, 2024.