| City: | Baltimore, Maryland |
| Names to Avoid: | Social Security Administrat |
| County: | Baltimore City County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 9:59:52 PM |
| Population: | No Population Data |
| Area Code: | 410 |
| Classification: | Unique [Company/Government] |
| Coordinates: | 39.3118, -76.7326 |
| Quick Link: |
The Social Security Administration operates under dedicated ZIP code 21235 from its headquarters complex at 6401 Security Boulevard in Woodlawn, a suburb of Baltimore. SSA has called Baltimore home since 1936, when the new agency set up operations in the Candler Building after Washington, D.C. lacked sufficient space. The current Woodlawn campus opened in 1960, becoming the agency's permanent headquarters. Security Boulevard was named specifically for SSA, and the nearby Security Square Mall and informal references to the area as 'Security' reflect the agency's lasting impact on the community. This postal designation has served SSA for over two decades.
Postal records show 24 delivery codes across 4 buildings on Security Boulevard including SSA main offices, the SSA National Computer Center (NCC), SSA Supply, and a USPS Contract Station. Census employment data indicates 76 workers at 9 establishments, though SSA employs over 6,300 at the Woodlawn campus alone. The 0.36-square-mile ZIP boundary encompasses core headquarters facilities. Baltimore serves as the valid mailing city.
| Establishments: | 9 |
| Employment: | 76 |
| Residential: | 0 |
| Business: | 21 |
Buildings registered in the USPS ZIP+4 database with designated codes for direct mail delivery.
ZIP Code 21235 supports both business and residential activity. According to the Business Census (2024), there are 11 business establishments, employing about 83 people with an annual payroll of $6,127,000. 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: | 2,854Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 11Source: CBP |
| 1st Quarter Payroll: | $1,329,000Source: CBP |
| Annual Payroll: | $6,127,000Source: CBP |
| # of Employees: | 83Source: CBP |
ZIP Code 21235 is located in Baltimore City County, Maryland, within the Baltimore-Columbia-Towson, MD Metropolitan Statistical Area (CBSA 12580) and Maryland's 7th Congressional District. This Metro area has a population of 2,710,489 people, about 0.00% of whom live in ZIP Code 21235. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Baltimore-Columbia-Towson, MDSource: Census |
| CBSA Number: | 12580Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 2,710,489Source: Census |
| MSA: | Washington-Baltimore, DC-MD-VA-WV CMSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 07Source: USPS |
| Congressional Land Area: | 488.03 sq miSource: Census |
| PMSA: | Baltimore, MD PMSASource: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 2404000Source: Census |
| Place Name: | Baltimore city; MarylandSource: Census |
We could not locate which school district 21235 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 March 1, 2026.