Coulter, IA zip code
Coulter, Iowa uses one zip code: 50431. Most of it is in Franklin County. Together these zip codes are home to about 228 people.
Zip codes
1
Population
228
All zips combined
Largest zip
50431
228 residents
Zip codes in Coulter
| Zip | Type | Population | IncomeMedian income |
|---|---|---|---|
| 50431 | 228 | $62,917 |