ZIP code · Rocky Ridge · Maryland · United States

ZIP code 21778 — Rocky Ridge

Name: Rocky Ridge (21778)
Address: Maryland, 21778, US

ZIP code 21778 serves Rocky Ridge, Maryland.

Postal code: 21778
Single source Value from one source, not cross-checked.
City: Rocky Ridge
County: Frederick
State: Maryland
Country: United States
Coordinates: 39.6057, -77.3296 — precision precise (locality)
View on OpenStreetMap

Nearby localities

21759Ladiesburg · 5.2 km
21775New Midway · 5.5 km
21788Thurmont · 6.0 km
21757Keymar · 6.1 km
21798Woodsboro · 8.7 km
21727Emmitsburg · 9.8 km
21793Walkersville · 14 km
21780Sabillasville · 15 km
21787Taneytown · 15 km
21762Libertytown · 15 km

About this page

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames. Data generated on 2026-08-21. Methodology · Report an error on this page