ZIP Code 20609
Avenue · St. Mary's, Maryland
20609 is the ZIP code of Avenue in St. Mary's, Maryland, United States.
- ZIP Code
- 20609
- County
- St. Mary's
- State
- Maryland
- Country
- United States
Place with ZIP code 20609
| Place | County | Location |
|---|---|---|
| Avenue | St. Mary's | 38.283, -76.747 |
Near Washington
The nearest major city is Washington, about 73 km away.
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 20609?
Avenue.
Which county and state is 20609 in?
St. Mary's, Maryland, United States.
What is the nearest major city to 20609?
Washington, about 73 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.