Union, IA zip code
Union, Iowa uses one zip code: 50258. Most of it is in Hardin County. Together these zip codes are home to about 958 people.
Zip codes
1
Population
958
All zips combined
Largest zip
50258
958 residents
Zip codes in Union
| Zip | Type | Population | IncomeMedian income |
|---|---|---|---|
| 50258 | 958 | $83,988 |