Mason City zipcode
| City | Mason City |
| ZIP Code | 62664 |
| Type | Standard |
| State Code | IL |
| State | Illinois |
ZIP code of Mason City is 62664. This place is located in Illinois state in US. To send any postal service to Mason City, you must use 62664 zipcode.
The ZIP code 62664 is also used with 2 more city names of Illinois.
- Luther, IL
- Teheran, IL