Zip Code Information
ZIP Code
21778
City
Rocky Ridge
State
Maryland
County
Frederick County
Population
909
Density
20.0 /km²
Latitude
39.61601
Longitude
-77.33581
Time Zone
America/New_York
About Zip Code 21778
Zip Code 21778 is primarily located in Rocky Ridge, Maryland. It covers an area in Frederick County. The population of this area is approximately 909.0, with a population density of 20.0 people per square kilometer. This Zip Code falls within the America/New_York timezone.
Frequently Asked Questions
What city is Zip Code 21778 in? +
Zip Code 21778 is in Rocky Ridge, Maryland.
What is the population of Zip Code 21778? +
The population of Zip Code 21778 is 909.0.
What county is Zip Code 21778 in? +
It is located in Frederick County.
What is the timezone for Zip Code 21778? +
The timezone is America/New_York.