Zip Code 21778 - Rocky Ridge, Frederick, MD, United States
Zip Code 21778 Data
| Zip Code | 21778 |
|---|---|
| City | Rocky Ridge |
| County | Frederick |
| County FIPS | 021 |
| State | Maryland |
| State FIPS | 24 |
| Latitude | 39.611768 |
| Longitude | -77.333956 |
| Timezone | 5 |
| Daylight | Yes |
| Country | United States |