Knoxville zipcode
| City | Knoxville |
| ZIP Code | 50138 |
| Type | Standard |
| State Code | IA |
| State | Iowa |
ZIP code of Knoxville is 50138. This place is located in Iowa state in US. To send any postal service to Knoxville, you must use 50138 zipcode.
The ZIP code 50138 is also used with 1 more city name of Iowa.
- Pershing, IA