ZIP Code 21640
Henderson · Caroline, Maryland
21640 is the ZIP code of Henderson in Caroline, Maryland, United States.
- ZIP Code
- 21640
- County
- Caroline
- State
- Maryland
- Country
- United States
Place with ZIP code 21640
| Place | County | Location |
|---|---|---|
| Henderson | Caroline | 39.067, -75.795 |
Near Baltimore
The nearest major city is Baltimore, about 75 km away.
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 21640?
Henderson.
Which county and state is 21640 in?
Caroline, Maryland, United States.
What is the nearest major city to 21640?
Baltimore, about 75 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.