Data Last Updated: May 1, 2022

ZIP Codes for City of Rocky Ridge, MD

Rocky Ridge, MD Covers 1 ZIP Code

ZIP Code	Type	County	Population	Area Code(s)
ZIP Code 21778	Standard	Frederick	1,094	240 / 301

Timezone(s):	Eastern (GMT -05:00)
Counties:	FREDERICK, MD

Population:	1,094 (More Details)
Male Population:	544
Female Population:	550
Median Age:	45

ZIP Codes:	1
Cities:	1
Counties:	1
Area Codes:	2

Total Area:	667 square miles (county)
Land Area:	660 square miles (county)
Water Area:	7 square miles (county)

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Rocky Ridge, MD Demographic Information *

There is no Census data for the city of ROCKY RIDGE, MD. We have pulled information for the ZIP Code 21778 instead.

Total population	1,094
Male population	544
Female population	550
Median age (years)	45.1
White Population	1,061
Black Population	0
Indian Population	4
Asian Population	4
Hawaiian Population	0
Hispanic Population	24
Median age (Male)	43.8
Median age (Female)	46.5
Total households	409
Family households (families)	310
Average household size	2.67
Average family size	3
Total housing units	438

* Demographic data is based on 2010 Census.

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References

U.S. Postal Service [Last Updated: 5/1/2022], https://www.usps.com

ZIP-Codes.com Internal Data Creation [Last Updated: 5/1/2022], https://www.zip-codes.com

U.S. Geological Survey [Updated as needed], https://www.usgs.gov/

U.S. Census [Updated Yearly], https://www.census.gov

U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010], https://www.census.gov