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ZIP Code 21778 — Rocky Ridge, MD

ZIP code 21778 serves Rocky Ridge, Maryland, within Frederick County. It is part of area code 301, with population 1,288 and mean income of $92,016.

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Location details

City: Rocky Ridge
County: Frederick County
State: Maryland (MD)
Area code: 301
Population: 1,288
Mean income: $92,016
Coordinates: 39.615810, -77.328420
Timezone: America/New York

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About ZIP code 21778

ZIP code 21778 is a Standard ZIP in Rocky Ridge, Maryland. It is linked to area code 301 and can be used to explore related ZIP codes, state-level coverage, and nearby geographic data.

The location coordinates are 39.615810, -77.328420, which can later be displayed on a map for better geographic context.

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