| City: | Washington, District of Columbia |
| Names to Avoid: | Natl Aero And Space Admin |
| County: | District Of Columbia County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 9:54:14 PM |
| Population: | No Population Data |
| Area Codes: | 202 / 771 |
| Classification: | Unique [Company/Government] |
| Coordinates: | 38.8951, -77.0369 |
| Quick Link: |
NASA, the National Aeronautics and Space Administration, operates under dedicated ZIP code 20546 in Washington, D.C. Established on July 29, 1958, NASA succeeded the National Advisory Committee for Aeronautics and began operations on October 1, 1958. The agency leads civilian space exploration, aeronautics research, and space science. In 2020, the headquarters building was renamed the Mary W. Jackson NASA Headquarters, honoring NASA's first Black woman engineer. This postal designation has served NASA for over two decades.
Situated in the Southwest Employment Area of Southwest Washington, postal records show 3 ZIP+4 codes routing to NASA and Lockheed Martin facilities on E Street SW. Census County Business Patterns reports 7 establishments with 44 employees in this government-focused zone. Census demographic data is not available for this ZIP. Washington is the valid mailing city for NASA correspondence.
| Establishments: | 7 |
| Employment: | 44 |
| Residential: | 0 |
| Business: | 1 |
Buildings registered in the USPS ZIP+4 database with designated codes for direct mail delivery.
ZIP Code 20546 supports both business and residential activity. According to the Business Census (2024), there are 6 business establishments, employing about 31 people with an annual payroll of $2,099,000. USPS data shows 0 residential mailboxes and 1 business mailboxes, reflecting local delivery coverage.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 1Source: USPS |
| Total Delivery Receptacles: | 1Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 6Source: CBP |
| 1st Quarter Payroll: | $595,000Source: CBP |
| Annual Payroll: | $2,099,000Source: CBP |
| # of Employees: | 31Source: CBP |
ZIP Code 20546 is located in District Of Columbia County, District of Columbia, within the Washington-Arlington-Alexandria, DC-VA-MD-WV Metropolitan Statistical Area (CBSA 47900) and District of Columbia's 98th Congressional District. This Metro area has a population of 5,582,170 people, about 0.00% of whom live in ZIP Code 20546, and is subdivided into the Washington, DC-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: | Washington, DC-MD (CBSA Div 47764)Source: Census |
| CBSA Population: | 5,582,170Source: Census |
| MSA: | Washington-Baltimore, DC-MD-VA-WV CMSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 98Source: USPS |
| Congressional Land Area: | 61.40 sq miSource: Census |
| PMSA: | Washington, DC-MD-VA-WV PMSASource: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 1150000Source: Census |
| Place Name: | Washington city; District of ColumbiaSource: Census |
We could not locate which school district 20546 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.