ZIP Code 20911: Silver Spring, MD
County: Montgomery County
Coordinates: 38.99070, -77.02610
ZIP Type: Standard
Time Zone: Eastern Time (ET)
Explore detailed information for ZIP code 20911 in Silver Spring, MD. We include verified county details for Montgomery County plus key geographic references used for mapping and logistics.
| Primary City | Silver Spring |
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| ZIP Code | 20911 |
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| County | Montgomery County |
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| State | MD |
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| Latitude / Longitude | 38.99070, -77.02610 |
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| ZIP Type | Standard |
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| Time Zone | Eastern Time (ET) |
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| Data Updated | 2026-01-08 |
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Maps & Useful Links
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These links show the approximate center point for ZIP 20911 (not an exact boundary).
Geographic & Administrative Context
The geographic center of ZIP code 20911 is approximately 38.99070 (latitude) and -77.02610 (longitude). This location sits within Montgomery County, contributing to regional planning across MD.
Local Coverage Notes
ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 20911 for mail delivery and general location reference in
Montgomery County,
MD.
Some addresses near Silver Spring may share this ZIP due to delivery routing and local service areas.
Related ZIP Codes (Nearby)
Explore other postal codes near Silver Spring within MD.
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Frequently Asked Questions
What is the primary city for ZIP code 20911?
The primary city for this ZIP code is Silver Spring, located in MD.
In which county is 20911 located?
ZIP code 20911 is situated within Montgomery County, MD.
What are the coordinates for 20911?
The approximate center point is 38.99070 (Latitude) and -77.02610 (Longitude).
Is ZIP code 20911 active?
This page lists ZIP 20911 as Listed based on the latest refresh date shown above.
Does ZIP 20911 cover multiple areas?
Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.
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Methodology & Data Notes
How we build this page: We generate this page from a structured ZIP dataset and refresh key fields (city, county, and coordinates) during scheduled updates. Coordinates represent an approximate center point, not an official boundary map.
Sources: Public ZIP reference datasets and geographic coordinate references. If you use specific sources (e.g., USPS, Census), list them on your About/Methodology page.
Page updated: 2026-01-08