| City: | Rockville, Maryland |
| Names to Avoid: | Hhs |
| County: | Montgomery County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:18:34 AM |
| Population: | No Population Data |
| Area Codes: | 227 / 240 / 301 |
| Classification: | Unique [Company/Government] |
| Coordinates: | 39.0839, -77.1534 |
| Quick Link: |
The U.S. Department of Health and Human Services operates under dedicated ZIP code 20857 from facilities in the North Bethesda area near Rockville, Maryland. HHS is the principal federal agency responsible for protecting the health of Americans and providing essential human services, overseeing agencies including the CDC, FDA, NIH, and Medicare. Postal records confirm HHS offices on Wisconsin Avenue and Fishers Lane within this ZIP. This postal designation has served the department for over two decades.
The HHS regional presence near the NIH campus in Bethesda reflects the clustering of federal health agencies in Montgomery County. Census employment data shows 84 workers at 5 establishments, representing administrative and program offices rather than the department's Washington, D.C. headquarters. Rockville serves as the valid mailing city for this designation.
| Establishments: | 5 |
| Employment: | 84 |
| Residential: | 0 |
| Business: | 2 |
Buildings registered in the USPS ZIP+4 database with designated codes for direct mail delivery.
ZIP Code 20857 supports both business and residential activity. According to the Business Census (2024), there are 5 business establishments, employing about 73 people with an annual payroll of $4,209,000. USPS data shows 0 residential mailboxes and 2 business mailboxes, reflecting local delivery coverage.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 2Source: USPS |
| Total Delivery Receptacles: | 1,512Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 5Source: CBP |
| 1st Quarter Payroll: | $1,067,000Source: CBP |
| Annual Payroll: | $4,209,000Source: CBP |
| # of Employees: | 73Source: CBP |
ZIP Code 20857 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 20857, 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: | 2467675Source: Census |
| Place Name: | Rockville city; MarylandSource: Census |
We could not locate which school district 20857 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.