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City · Maryland · United States

Rockville, MD — ZIP codes

8 ZIP codes · Montgomery County

City
Rockville
County
Montgomery
State
Maryland
Country
United States
Postal codes
2084720848208492085020851208522085320857
Single source
Coordinates
39.0840, -77.1528 View on OpenStreetMap
Area codes
301, 240, 227 (from the nearest rate centre)

ZIP codes (8)

Postal codePlace nameVerification
20847RockvilleSingle source
20848RockvilleSingle source
20849RockvilleSingle source
20850RockvilleSingle source
20851RockvilleSingle source
20852RockvilleSingle source
20853RockvilleSingle source
20857RockvilleSingle source

Sources and verification

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 · U.S. Census Bureau (ACS). Last generated : 2026-08-21. Report an error.