County · Arkansas · United States
Union County ZIP codes
8 ZIP codes · 8 cities · FIPS 05139
Key facts
- State
- Arkansas (AR)
- FIPS code
- 05139
- Population
- 38,368
- Median household income
- $50,221
- Median age
- 41.5
- Land area
- 1,039.1 sq mi (2,691.2 km²)
- Population density
- 37 / sq mi
- Area codes
- 327, 870
Cities and ZIP codes in Union County (8)
| City | ZIP codes |
|---|---|
| Calion | 71724 |
| El Dorado | 71730 |
| Huttig | 71747 |
| Junction City | 71749 |
| Mount Holly | 71758 |
| Norphlet | 71759 |
| Smackover | 71762 |
| Strong | 71765 |
About this page
County figures are Census county-level values (ACS 5-year); the ZIP list shows the ZIPs whose primary county this is — a ZIP on a border can also serve neighbouring counties.
Sources: U.S. Census Bureau (2020 county relationship file, ACS 5-year) · GeoNames. Methodology.