ZIP Code 21661 – Rock Hall, Maryland
The 21661 ZIP Code belongs to Rock Hall, Maryland. The population in this 21661 ZIP code is 2,400. The latitude is 39.12905 and longitude is -76.21967 in 21661 Rock Hall, Maryland. The time zone for this 21661 ZIP code is America/New_York.
| City | Rock Hall |
| Zip Code | 21661 |
| State | Maryland |
| County | Kent |
| Population | 2,400 |
| Latitude | 39.12905 |
| Longitude | -76.21967 |
| Time Zone | America/New_York |