Knoxville zipcode
| City | Knoxville |
| ZIP Code | 21758 |
| Type | Standard |
| State Code | MD |
| State | Maryland |
ZIP code of Knoxville is 21758. This place is located in Maryland state in US. To send any postal service to Knoxville, you must use 21758 zipcode.
The ZIP code 21758 is also used with 1 more city name of Maryland.
- Brunswick, MD