Ionia zipcode
| City | Ionia |
| ZIP Code | 50645 |
| Type | Standard |
| State Code | IA |
| State | Iowa |
ZIP code of Ionia is 50645. This place is located in Iowa state in US. To send any postal service to Ionia, you must use 50645 zipcode.
You should avoid following 2 city names of Iowa to be used with the ZIP code 50645.
- Bassett, IA
- Chickasaw, IA