ZIP Code 21203
Baltimore · Baltimore (city), Maryland
21203 is the ZIP code of Baltimore in Baltimore (city), Maryland, United States.
- ZIP Code
- 21203
- County
- Baltimore (city)
- State
- Maryland
- Country
- United States
Place with ZIP code 21203
| Place | County | Location |
|---|---|---|
| Baltimore | Baltimore (city) | 39.285, -76.621 |
Near Baltimore
The nearest major city is Baltimore, about 1 km away.
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 21203?
Baltimore.
Which county and state is 21203 in?
Baltimore (city), Maryland, United States.
What is the nearest major city to 21203?
Baltimore, about 1 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.