County · Iowa · United States
Union County ZIP codes
7 ZIP codes · 7 cities · FIPS 19175
Key facts
- State
- Iowa (IA)
- FIPS code
- 19175
- Population
- 12,038
- Median household income
- $56,813
- Median age
- 40.6
- Land area
- 423.6 sq mi (1,097.2 km²)
- Population density
- 28 / sq mi
- Area codes
- 641
Cities and ZIP codes in Union County (7)
| City | ZIP codes |
|---|---|
| Afton | 50830 |
| Arispe | 50831 |
| Creston | 50801 |
| Cromwell | 50842 |
| Lorimor | 50149 |
| Shannon City | 50861 |
| Thayer | 50254 |
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.