| City: | Riverdale, Maryland |
| County: | Prince Georges County |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:16:04 AM |
| Population: | No Population Data |
| Area Codes: | 227 / 240 / 301 |
| Classification: | PO Box |
| Coordinates: | 38.9633, -76.9316 |
| Quick Link: |
ZIP code 20738 serves as a PO Box facility for the Riverdale area in Prince George's County, Maryland. This ZIP exclusively contains PO Boxes and doesn't handle street delivery—that's managed by the neighboring ZIP code 20737. The post office maintains 189 PO Boxes serving 96 businesses and residents in the Riverdale Park neighborhood.
The facility operates within the Washington, DC metropolitan area, with Kenilworth Avenue being the single street address associated with this ZIP. Despite the PO Box-only classification, residents in Riverdale Park have access to street delivery through the adjacent 20737 ZIP code. This dual-ZIP arrangement is common in suburban communities where a dedicated PO Box facility serves customers who prefer or require box service while standard carrier routes operate under a separate ZIP.
Only Kenilworth Avenue appears in the postal records, representing the administrative address for the PO Box facility rather than a delivery route.
ZIP Code 20738 is designated for PO Box delivery only; business establishment and employment data are not available.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 897Source: 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 20738 is located in Prince Georges County, Maryland, within the Washington-Arlington-Alexandria, DC-VA-MD-WV Metropolitan Statistical Area (CBSA 47900) and Maryland's 4th Congressional District. This Metro area has a population of 6,263,796 people, about 0.00% of whom live in ZIP Code 20738, 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: | 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: | 2424650Source: Census |
| Place Name: | East Riverdale CDP; MarylandSource: Census |
We could not locate which school district 20738 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 January 1, 2026.