ZIP Code 20859
Potomac · Montgomery, Maryland
20859 is the ZIP code of Potomac in Montgomery, Maryland, United States.
- ZIP Code
- 20859
- County
- Montgomery
- State
- Maryland
- Country
- United States
Place with ZIP code 20859
| Place | County | Location |
|---|---|---|
| Potomac | Montgomery | 39.144, -77.208 |
Near Washington
The nearest major city is Washington, about 31 km away.
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 20859?
Potomac.
Which county and state is 20859 in?
Montgomery, Maryland, United States.
What is the nearest major city to 20859?
Washington, about 31 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.