Knoxville, MD zip code
Knoxville, Maryland uses one zip code: 21758. Most of it is in Frederick County. Together these zip codes are home to about 4.4K people.
Zip codes
1
Population
4.4K
All zips combined
Largest zip
21758
4,409 residents
Zip codes in Knoxville
| Zip | Type | Population | IncomeMedian income |
|---|---|---|---|
| 21758 | 4,409 | $111,528 |