ZIP Code 22121
Mount Vernon · Fairfax, Virginia
22121 is the ZIP code of Mount Vernon in Fairfax, Virginia, United States.
- ZIP Code
- 22121
- County
- Fairfax
- State
- Virginia
- Country
- United States
Place with ZIP code 22121
| Place | County | Location |
|---|---|---|
| Mount Vernon | Fairfax | 38.719, -77.107 |
Near Washington
The nearest major city is Washington, about 21 km away.
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 22121?
Mount Vernon.
Which county and state is 22121 in?
Fairfax, Virginia, United States.
What is the nearest major city to 22121?
Washington, about 21 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.