City
Rocky Ridge, MD ZIP codes
1 ZIP, including 21778 as primary city.
Map of Rocky Ridge
ZIP code map
ZIP share of this city
Population share
No overlap percents for this place — ZIP codes are listed from the city or county field.
ZIP codes in Rocky Ridge
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 21778 | Rocky Ridge | Frederick County | 840 | $110,489 |