ZIP Code 21150
Simpsonville · Howard, Maryland
21150 is the ZIP code of Simpsonville in Howard, Maryland, United States.
- ZIP Code
- 21150
- County
- Howard
- State
- Maryland
- Country
- United States
Place with ZIP code 21150
| Place | County | Location |
|---|---|---|
| Simpsonville | Howard | 39.236, -76.942 |
Near Baltimore
The nearest major city is Baltimore, about 29 km away.
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 21150?
Simpsonville.
Which county and state is 21150 in?
Howard, Maryland, United States.
What is the nearest major city to 21150?
Baltimore, about 29 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.