ZIP Code 21738 Area Code
Glenwood, Maryland
Area Code
301, 410, 443
Primary area codes for Maryland (per-ZIP data not available)
Location
| ZIP Code | 21738 |
|---|---|
| City | Glenwood |
| State | Maryland (MD) |
| County | Howard |
Frequently Asked Questions
ZIP code 21738 is in Glenwood, Maryland. The primary area codes for Maryland are 301, 410, 443.
ZIP code 21738 is in Glenwood, Maryland.