ZIP Code
ZIP Code 21778
Rocky Ridge, Frederick County, Maryland MD
Population
745
Density
15.8/sq mi
Timezone
America/New_York
Safety Score
50
50
Average
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Overview
ZIP code 21778 is located in Rocky Ridge, Frederick County, Maryland. The area has a population of approximately 745 residents with a population density of 15.8 per square mile. It is in the America/New_York timezone.
Nearby ZIP Codes
21757 (Keymar, MD)4.3 mi21788 (Thurmont, MD)4.6 mi21727 (Emmitsburg, MD)5 mi21798 (Woodsboro, MD)5.7 mi21780 (Sabillasville, MD)8.1 mi21793 (Walkersville, MD)8.7 mi21791 (Union Bridge, MD)9.5 mi21787 (Taneytown, MD)9.6 mi21762 (Libertytown, MD)10.5 mi21719 (Cascade, MD)10.6 mi17320 (Fairfield, PA)11 mi21702 (Frederick, MD)11.3 mi