Johnstown zipcode
| City | Johnstown |
| ZIP Code | 80534 |
| Type | Standard |
| State Code | CO |
| State | Colorado |
ZIP code of Johnstown is 80534. This place is located in Colorado state in US. To send any postal service to Johnstown, you must use 80534 zipcode.
The ZIP code 80534 is also used with 1 more city name of Colorado.
- Loveland, CO