| City: | Capitol Heights, Maryland |
| City Alias: | Capitol Hgts |
| Names to Avoid: | Southern Maryland Facility |
| County: | Prince Georges County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 3:56:54 PM |
| Population: | No Population Data |
| Area Codes: | 227 / 240 / 301 |
| Classification: | Unique [Company/Government] |
| Coordinates: | 38.9876, -76.8806 |
| Quick Link: |
The USPS Southern Maryland Facility operates under dedicated ZIP code 20790, serving as a major postal processing and distribution center near Largo in Prince Georges County. This facility handles mail operations including sorting, distribution, and administrative functions for the southern Maryland region of the Washington, D.C. metropolitan area. The Capital Beltway Facility designation within the complex reflects its strategic location near the I-495/I-95 corridor. This postal designation has served the facility for over two decades.
Postal records reveal an extensive organizational structure with 44 delivery codes across 37 named offices on Edgeworth Drive. Departments include the Manager of Processing Distribution Center, Fleet Operations, Commercial Accounts, Mailpiece Design, Express Mail Coordination, and Office of Inspector General. Valid mailing cities include Capitol Heights and its abbreviation Capitol Hgts. Census demographic data is not available, consistent with industrial postal operations without residential population.
| Residential: | 0 |
| Business: | 3 |
Buildings registered in the USPS ZIP+4 database with designated codes for direct mail delivery.
ZIP Code 20790 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 3 business mailboxes, reflecting local delivery coverage.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 3Source: USPS |
| Total Delivery Receptacles: | 3Source: 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 20790 is located in Prince Georges County, Maryland, within the Metropolitan Statistical Area (CBSA ) and Maryland's 4th Congressional District. This area has a population of 5,582,170 people, about 0.00% of whom live in ZIP Code 20790. It covers 0 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | --Source: Census |
| CBSA Number: | --Source: Census |
| CBSA Type: | --Source: Census |
| CBSA Division: | --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: | 04Source: USPS |
| Congressional Land Area: | 297.81 sq miSource: Census |
| PMSA: | Washington, DC-MD-VA-WV PMSASource: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 2413000Source: Census |
| Place Name: | Capitol Heights town; MarylandSource: Census |
We could not locate which school district 20790 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.