ZIP Code 21738 – Glenwood, Maryland
The 21738 ZIP Code belongs to Glenwood, Maryland. The population in this 21738 ZIP code is 3,668. The latitude is 39.27973 and longitude is -77.02554 in 21738 Glenwood, Maryland. The time zone for this 21738 ZIP code is America/New_York.
| City | Glenwood |
| Zip Code | 21738 |
| State | Maryland |
| County | Howard |
| Population | 3,668 |
| Latitude | 39.27973 |
| Longitude | -77.02554 |
| Time Zone | America/New_York |