| City: | Dhs, Maryland |
| City Alias: | Camp Springs, Cheltenham, Columbia |
| Names to Avoid: | Dept Hs |
| County: | Howard County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:12:17 AM |
| Population: | No Population Data |
| Area Code: | -- |
| Classification: | Unique [Company/Government] |
| Coordinates: | 0.0000, 0.0000 |
| Quick Link: |
The U.S. Department of Homeland Security operates under dedicated ZIP code 20588, serving multiple DHS facilities across the Maryland suburbs of Washington, D.C. Created in November 2002 as a response to the September 11 attacks, DHS consolidated 22 federal agencies under one cabinet department with the mission of safeguarding the American people, homeland, and values. The USPS assigned this unique postal designation in October 2008, about six years after the department's formation.
Postal records identify U.S. Citizenship and Immigration Services (USCIS) as a delivery point at Capital Gateway, reflecting DHS's sprawling footprint across multiple Maryland locations. USCIS handles immigration benefits including naturalization, green cards, and work authorizations. Valid mailing cities for this designation include Camp Springs, Cheltenham, Columbia, and the abbreviated DHS, accommodating the department's distributed office locations throughout the region.
| Establishments: | 3 |
| Employment: | 34 |
Buildings registered in the USPS ZIP+4 database with designated codes for direct mail delivery.
ZIP Code 20588 is assigned to a single organization or institution. Detailed business demographics are not published for unique ZIP Codes. 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: | 0Source: CBP |
| 1st Quarter Payroll: | $0Source: CBP |
| Annual Payroll: | $0Source: CBP |
| # of Employees: | 0Source: CBP |
ZIP Code 20588 is located in Howard County, Maryland, within the Baltimore-Columbia-Towson, MD Metropolitan Statistical Area (CBSA 12580) and Maryland's 5th Congressional District. This Metro area has a population of 2,839,409 people, about 0.00% of whom live in ZIP Code 20588. 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: | 2,839,409Source: Census |
| MSA: | Washington-Baltimore, DC-MD-VA-WV CMSASource: Census |
| Land Area: | --Source: Census |
| Water Area: | --Source: Census |
| Congressional District: | 05Source: USPS |
| Congressional Land Area: | 1481.24 sq miSource: Census |
| PMSA: | Baltimore, MD PMSASource: Census |
| Intro Date: | 2008-10Source: ZIP-Codes.com |
| Place FIPS Code: | --Source: Census |
| Place Name: | --Source: Census |
We could not locate which school district 20588 is in due to a lack of coordinates for this location. Please check back soon as this will be updated once coordinates are determined. 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 January 1, 2026.