Castana, IA zip code
Castana, Iowa uses one zip code: 51010. Most of it is in Monona County. Together these zip codes are home to about 425 people.
Zip codes
1
Population
425
All zips combined
Largest zip
51010
425 residents
Zip codes in Castana
| Zip | Type | Population | IncomeMedian income |
|---|---|---|---|
| 51010 | 425 | $89,063 |