ZIP code · Silver Spring · Maryland · United States
ZIP code 20911 — Silver Spring
ZIP code 20911 serves Silver Spring, Maryland.
- Postal code
- 20911Single source Value from one source, not cross-checked.
- City
- Silver Spring
- County
- Montgomery
- State
- Maryland
- Country
- United States
- Coordinates
- 38.9907, -77.0261 — precision precise (locality)
View on OpenStreetMap - Time zone
- America/New_York (UTC−5 / UTC−4 DST)
- Area codes
- 240, 301, 227 (from the nearest rate centre)Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.
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