ZIP Code 21788
Thurmont · Frederick, Maryland
21788 is the ZIP code of Thurmont in Frederick, Maryland, United States.
- ZIP Code
- 21788
- County
- Frederick
- State
- Maryland
- Country
- United States
Place with ZIP code 21788
| Place | County | Location |
|---|---|---|
| Thurmont | Frederick | 39.611, -77.399 |
Near Baltimore
The nearest major city is Baltimore, about 76 km away.
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 21788?
Thurmont.
Which county and state is 21788 in?
Frederick, Maryland, United States.
What is the nearest major city to 21788?
Baltimore, about 76 km away.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.