ZIP Code 20731 in Capitol Heights, MD

Data Last Updated: February 1, 2026
City:Capitol Heights, Maryland
City Alias:Capitol Hgts
County:Prince Georges County
Timezone:Eastern (GMT -05:00)
Local Time:9:56:07 PM
Population:No Population Data
Area Codes:227 / 240 / 301
Classification:PO Box
Coordinates:38.9876, -76.8808
Quick Link:
https://www.zip-codes.com/zip-code/20731/zip-code-20731.asp

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20731 - Capitol Heights, MD

ZIP Code 20731, Capitol Heights

Small Town Unique ZIP No Census Data
LocationPrince Georges County, MD
Area0 sq mi Single Point
Delivery Points214 (57 businesses)
PO Boxes157
ZIP CreatedBefore Oct 2004
Enclosed InZIP Code 20743
Key Facts
  • This is a PO Box-only ZIP code with 157 boxes serving Capitol Heights, Maryland
  • The post office is located on Central Avenue in the Washington, DC metro area
  • 57 businesses use PO Boxes at this facility alongside residential customers
  • Street delivery for Capitol Heights residents comes through neighboring ZIP code 20743
  • The facility operates as a dedicated PO Box station within Prince George's County

Postal Services

The postal facility supports 57 businesses alongside residential customers. Street delivery for the Capitol Heights area comes through the neighboring ZIP code 20743, which provides carrier routes to local addresses. This arrangement isn't unusual in dense suburban areas near Washington, where communities often split between street delivery ZIPs and dedicated PO Box facilities.

Street Name Patterns

Single Street

Central Avenue is the sole street associated with this ZIP code, serving as the location of the PO Box facility.

Nearby Areas

Capitol Heights Capitol View Marshall Heights - Lincoln Heights Southeast Washington Grant Park

Business & Employment Statistics


ZIP Code 20731 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:202Source: 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

Geography, Land Area, & Statistical Classifications


ZIP Code 20731 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 5,582,170 people, about 0.00% of whom live in ZIP Code 20731, 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: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

Adjacent & Nearby ZIP Codes


20732 | | 20726

Schools in ZIP Code 20731


We could not locate which school district 20731 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.

Eleanor Roosevelt High 7601 Hanover Pkwy
Greenbelt, MD 20770
District: Prince George's County Public SchoolsNearby
Robert Frost Elementary 6419 85th Ave
New Carrollton, MD 20784
District: Prince George's County Public SchoolsNearby
Lamont Elementary 7101 Good Luck Rd
New Carrollton, MD 20784
District: Prince George's County Public SchoolsNearby
Magnolia Elementary 8400 Nightingale Dr
Lanham, MD 20706
District: Prince George's County Public SchoolsNearby
Dora Kennedy French Immersion 8950 Edmonston Rd
Greenbelt, MD 20770
District: Prince George's County Public SchoolsNearby
M&M Learning Center 6511 Princess Garden Pkwy
Lanham, MD 20706
District: Private SchoolNearby
Mt Zion Preparatory Academy 6511 Princess Garden Pkwy
Lanham, MD 20706
District: Private SchoolNearby
Lanham Christian School 8400 Good Luck Rd
Lanham Seabrook, MD 20706
District: Private SchoolNearby

Colleges & Post Secondary Schools near ZIP Code 20731


Hair Academy 8435 Old Annapolis Rd
New Carrollton, MD 20784
Type: Post Secondary
Fortis College-Landover 4351 Garden City Drive
Landover, MD 20785-2223
Type: Post Secondary
University Of Maryland-College Park M
College Park, MD 20742
Type: Post Secondary
Denver Seminary - Washington Dc 3600 Brightseat Road
Landover, MD 20785-2414
Type: Post Secondary
Capitol Technology University 11301 Springfield Rd
Laurel, MD 20708
Type: Post Secondary
University Of Maryland Global Campus 3501 University Blvd East
Adelphi, MD 20783-8010
Type: Post Secondary

Sources & References


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.

  1. U.S. Postal Service [Last Updated: 2/1/2026], https://www.usps.com
  2. ZIP-Codes.com Proprietary Data Enhancements [Updated: 2/1/2026], https://www.zip-codes.com
  3. U.S. Census [Updated: Varies], https://www.census.gov
    • U.S. Census Office of Management and Budget [Updated: As Released]
    • U.S. Census 2020 Demographic & Housing Characteristics (DHC) [Decennial] [Updated: 5/25/2023]
    • U.S. Census 2011-2024 American Community Survey 5-year estimates (ACS) [Annually] [Updated: Annually, As Released]
    • U.S. Census Business Patterns (CBD) [Annually] [Updated: Annually, As Released]
    • U.S. Census American National Standards Institute (ANSI) [Updated: As Released]
  4. U.S. Geological Survey [Updated: Varies], https://www.usgs.gov
  5. Centers for Medicare & Medicaid Services [Updated: Annually, As Released], https://www.cms.gov
  6. National Center for Education Statistics [Updated: 2/1/2026], https://nces.ed.gov