Ashburn, VA ZIP Codes
Ashburn, Virginia has 5 ZIP codes: 3 for street addresses (, and ), 1 for PO boxes () and 1 for a single organization.
Your street decides which one you use.
Which Ashburn 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?
Ashburn ZIP code map
Tap or point to an area to see its ZIP code.Full-size map
20146 and 20149 have no area on the map: they are PO box or single-organization ZIP codes. Dashed line: the Ashburn Census outline.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and place limits (2024).
All Ashburn ZIP codes by type
| ZIP | Type and post office or station |
|---|---|
| 20146 | PO boxes at the Ashburn post office Ashburn |
| 20147 | street delivery Ashburn |
| 20148 | street delivery Ashburn |
| 20149 | one organization Ashburn |
| 20166 | street delivery; mail may be addressed to Sterling Potomac Falls |
Why your mail may say Ashburn when you live outside it
Ashburn ZIP codes also cover Brambleton, Broadlands and Loudoun Valley Estates, so a letter addressed to Ashburn can go to a home outside the town.
A ZIP code does not set your city, school district or tax. Loudoun County property records show which city you are in.
Ashburn ZIP code questions
What is the main ZIP code for Ashburn?
20147, the ZIP code of the main Ashburn post office at 44715 Prentice Dr.
Which Ashburn ZIP codes are for PO boxes only?
20146. Mail to it goes to boxes at the post office, not to street addresses.
What county is Ashburn in?
Loudoun County.
ZIP codes for towns near Ashburn
More towns near Ashburn: Oakton, Potomac, Germantown, McLean, Gaithersburg, Rockville, Clarksburg, Montgomery Village, West Falls Church.
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