| ZIP Code | 21778 |
| City | Rocky Ridge |
| State | Maryland (MD) |
| County | Rocky Ridge County |
| Coordinates | 39.6057000, -77.3296000 |
| Population | 19,948 |
| Median Household Income | $103,900 |
| Median Home Value | $446,000 |
| Unemployment Rate | 9.4% |
| ZIP Type | STANDARD |
| Country | United States |
The ZIP code 21778 of Rocky Ridge falls within Maryland, the United States - a mid-sized area by population. It sits within Rocky Ridge County.
Around 19,948 people live in the 21778 ZIP code area. That's close to the typical population for a ZIP code in Maryland (~23,118).
Median household income is about $103,900 (near the Maryland average).
Nearby communities in Maryland include Essex, White Marsh, Frederick.
The ZIP code for Rocky Ridge, Maryland is 21778.
21778 is located in Rocky Ridge County, Maryland.
The population of 21778 (Rocky Ridge) is approximately 19,948 people.
21778 is about average compared to the typical Maryland ZIP code, which averages around 23,118 people.
ZIP code codes near 21778 include 21221, 21162, 21703.