| City: | Washington, District of Columbia |
| Names to Avoid: | Dept Homeland Security |
| County: | District Of Columbia County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:10:40 AM |
| Population: | No Population Data |
| Area Codes: | 202 / 771 |
| Classification: | Unique [Company/Government] |
| Coordinates: | 38.8509, -76.9968 |
| Quick Link: |
The U.S. Department of Homeland Security operates under dedicated ZIP code 20528 in Washington, D.C. Created in 2002 following the September 11 attacks, DHS combined 22 federal agencies into a unified cabinet department with over 260,000 employees. The department's mission encompasses border security, cybersecurity, emergency response, and counterterrorism. This postal designation has served DHS mail operations for more than two decades.
Located in the Washington Mall area of Northwest Washington, postal records show 116 ZIP+4 codes assigned to this designation. The substantial delivery count reflects DHS's extensive administrative operations across its component agencies. No specific building names appear in postal records, suggesting centralized mail processing. Census demographic data is not available for this ZIP. Washington is the valid mailing city for DHS correspondence.
| Establishments: | 5 |
| Employment: | 26 |
| Residential: | 0 |
| Business: | 1 |
ZIP Code 20528 supports both business and residential activity. According to the Business Census (2024), there are 6 business establishments, employing about 20 people with an annual payroll of $2,640,000. 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: | $584,000Source: CBP |
| Annual Payroll: | $2,640,000Source: CBP |
| # of Employees: | 20Source: CBP |
ZIP Code 20528 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 6,263,796 people, about 0.00% of whom live in ZIP Code 20528, 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: | 6,263,796Source: 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 20528 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.