Clarksburg, MD ZIP Codes
Clarksburg, Maryland has 3 ZIP codes: 3 for street addresses (, and ).
Your street decides which one you use.
Which Clarksburg ZIP code is my address in?
Street ranges from the Census Bureau, 2026. PO box and organization ZIP codes are not found by street. A new street may be missing: address not found?
Clarksburg ZIP code map
Tap or point to an area to see its ZIP code.Full-size map
Dashed line: the Clarksburg Census outline.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and place limits (2024).
All Clarksburg ZIP codes by type
| ZIP | Type and post office or station |
|---|---|
| 20841 | street delivery; mail may be addressed to Boyds Boyds |
| 20871 | street delivery Clarksburg |
| 20876 | street delivery; mail may be addressed to Germantown Germantown |
Why your mail may say Clarksburg when you live outside it
Clarksburg ZIP codes also cover Germantown and Ten Mile Creek, so a letter addressed to Clarksburg can go to a home outside the town.
A ZIP code does not set your city, school district or tax. Montgomery County property records show which city you are in.
Clarksburg ZIP code questions
What is the main ZIP code for Clarksburg?
20871, the ZIP code of the main Clarksburg post office at 22505 Gateway Center Dr.
What county is Clarksburg in?
Montgomery County.
ZIP codes for towns near Clarksburg
More towns near Clarksburg: Potomac, North Bethesda, Wheaton, Frederick, Sterling, Ashburn, Leesburg, Bethesda, Reston.
Sources and last checked
USPS ZIP Locale Detail (October 1, 2026), GeoNames (CC BY 4.0), U.S. Census Bureau, HUD-USPS crosswalk.
Checked October 20, 2026. Sources · How we build our lists · Corrections