ZIP Code 21758 — Knoxville, MD
ZIP code 21758 serves Knoxville, Maryland, within Frederick County. It is part of area code 301, with population 4,909 and mean income of $104,257.
Location details
- City
- Knoxville
- County
- Frederick County
- State
- Maryland (MD)
- Area code
- 301
- Population
- 4,909
- Mean income
- $104,257
- Coordinates
- 39.353200, -77.656810
- Timezone
- America/New York
Related ZIP codes in MD
Open state pageAbout ZIP code 21758
ZIP code 21758 is a Standard ZIP in Knoxville, Maryland. It is linked to area code 301 and can be used to explore related ZIP codes, state-level coverage, and nearby geographic data.
The location coordinates are 39.353200, -77.656810, which can later be displayed on a map for better geographic context.
Location map
Click to View the Map
Click to load interactive map
ZIP 21758 · Knoxville, MD