ZIP Code 21641
Hillsboro · Caroline, Maryland
21641 is the ZIP code of Hillsboro in Caroline, Maryland, United States.
- ZIP Code
- 21641
- County
- Caroline
- State
- Maryland
- Country
- United States
Place with ZIP code 21641
| Place | County | Location |
|---|---|---|
| Hillsboro | Caroline | 38.921, -75.939 |
Near Baltimore
The nearest major city is Baltimore, about 71 km away.
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 21641?
Hillsboro.
Which county and state is 21641 in?
Caroline, Maryland, United States.
What is the nearest major city to 21641?
Baltimore, about 71 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.