Johnston zipcode
| City | Johnston |
| ZIP Code | 50131 |
| Type | Standard |
| State Code | IA |
| State | Iowa |
ZIP code of Johnston is 50131. This place is located in Iowa state in US. To send any postal service to Johnston, you must use 50131 zipcode.
The ZIP code 50131 is also used with 1 more city name of Iowa.
- Urbandale, IA
You should avoid following 1 city name of Iowa to be used with the ZIP code 50131.
- Camp Dodge, IA