ZIP Code 21139 Area Code
Riderwood, Maryland
Area Code
301, 410, 443
Primary area codes for Maryland (per-ZIP data not available)
Location
| ZIP Code | 21139 |
|---|---|
| City | Riderwood |
| State | Maryland (MD) |
| County | Baltimore |
Frequently Asked Questions
ZIP code 21139 is in Riderwood, Maryland. The primary area codes for Maryland are 301, 410, 443.
ZIP code 21139 is in Riderwood, Maryland.