| City: | Silver Spring, Maryland |
| County: | Montgomery County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:19:25 AM |
| Population: | No Population Data |
| Area Codes: | 227 / 240 / 301 |
| Classification: | PO Box |
| Coordinates: | 38.9909, -77.0267 |
| Quick Link: |
This ZIP sits at the intersection of 16th Street and Colesville Road, two major thoroughfares in the Silver Spring area. The facility doesn't operate as a traditional neighborhood post office. Instead, it functions as a PO Box-only location that's completely enclosed by the larger 20910 ZIP code. Residents who need street delivery receive it through neighboring ZIP codes, while this facility specifically handles box rentals for customers who prefer or require that service.
The two streets associated with this ZIP are both major urban corridors in Silver Spring. 16th Street runs north-south through the DC metro area, while Colesville Road is a key commercial route. Both streets have unit-based addressing, indicating multi-tenant buildings at these locations.
ZIP Code 20911 supports both business and residential activity. According to the Business Census (2024), there are 4 business establishments, employing about 17 people with an annual payroll of $941,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 1,196Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 4Source: CBP |
| 1st Quarter Payroll: | $318,000Source: CBP |
| Annual Payroll: | $941,000Source: CBP |
| # of Employees: | 17Source: CBP |
ZIP Code 20911 is located in Montgomery County, Maryland, within the Washington-Arlington-Alexandria, DC-VA-MD-WV Metropolitan Statistical Area (CBSA 47900) and Maryland's 8th Congressional District. This Metro area has a population of 6,263,796 people, about 0.00% of whom live in ZIP Code 20911, and is subdivided into the Frederick-Gaithersburg-Bethesda, MD division. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Washington-Arlington-Alexandria, DC-VA-MD-WVSource: Census |
| CBSA Number: | 47900Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | Frederick-Gaithersburg-Bethesda, MD (CBSA Div 23224)Source: Census |
| CBSA Population: | 6,263,796Source: Census |
| MSA: | Washington-Baltimore, DC-MD-VA-WV CMSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 08Source: USPS |
| Congressional Land Area: | 859.85 sq miSource: Census |
| PMSA: | Washington, DC-MD-VA-WV PMSASource: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 2472450Source: Census |
| Place Name: | Silver Spring CDP; MarylandSource: Census |
We could not locate which school district 20911 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.