City · Maryland · United States
Gaithersburg, MD — ZIP codes
9 ZIP codes · Montgomery County
- City
- Gaithersburg
- County
- Montgomery
- State
- Maryland
- Country
- United States
- Postal codes
- 208772087820879208822088320884208852089820899Single source
- Coordinates
- 39.1419, -77.1890 View on OpenStreetMap
ZIP codes (9)
| Postal code | Place name | Verification |
|---|---|---|
| 20877 | Gaithersburg | Single source |
| 20878 | Gaithersburg | Single source |
| 20879 | Gaithersburg | Single source |
| 20882 | Gaithersburg | Single source |
| 20883 | Gaithersburg | Single source |
| 20884 | Gaithersburg | Single source |
| 20885 | Gaithersburg | Single source |
| 20898 | Gaithersburg | Single source |
| 20899 | Gaithersburg | Single 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.