21778   Zip Code Rocky Ridge Frederick MD United States

City Rocky Ridge
County Frederick
State Maryland
Latitude 39.61576
Longitude -77.33754
Population 745
Density 40.93 people per square mile
Time Zone America/New York
  • All demographic data comes from the 2024 American Community Survey (5-year study).
  • Learn more about each field.
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Household Income

Median household: $76,458
Median individual: $46,583

Race

Mode: 100.0% White

Gender

 61.2% female 

Rent

No data available.

Age

Median: 58.4 years old

Education

With at least college degree: 27.0%
With STEM degree: 41.3%

Marital Status

 44.9% married 

Never married: 25.1%

Labor Force Participation

 52.9% working 

Unemployed: 6.5%

Average Family Size

 3.59 people 

Commute Time

 26.0 minutes 

Health Care

 1.7% uninsured 

Poverty

 0.9%

All data comes from the SimpleMaps US Zips Comprehensive Database, February 2026.

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