ZIP Code 21757 – Keymar, Maryland
The 21757 ZIP Code belongs to Keymar, Maryland. The population in this 21757 ZIP code is 2,810. The latitude is 39.59902 and longitude is -77.25906 in 21757 Keymar, Maryland. The time zone for this 21757 ZIP code is America/New_York.
| City | Keymar |
| Zip Code | 21757 |
| State | Maryland |
| County | Carroll |
| Population | 2,810 |
| Latitude | 39.59902 |
| Longitude | -77.25906 |
| Time Zone | America/New_York |