ZIP Code 21810
Allen · Wicomico, Maryland
21810 is the ZIP code of Allen in Wicomico, Maryland, United States.
- ZIP Code
- 21810
- County
- Wicomico
- State
- Maryland
- Country
- United States
Place with ZIP code 21810
| Place | County | Location |
|---|---|---|
| Allen | Wicomico | 38.287, -75.688 |
Near Washington
The nearest major city is Washington, about 135 km away.
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 21810?
Allen.
Which county and state is 21810 in?
Wicomico, Maryland, United States.
What is the nearest major city to 21810?
Washington, about 135 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.