ZIP Code 20056 in Washington, DC

Data Last Updated: January 1, 2026
City:Washington, District of Columbia
County:District Of Columbia County
Timezone:Eastern (GMT -05:00)
Local Time:2:02:28 AM
Population:No Population Data
Area Codes:202 / 771
Classification:PO Box
Coordinates:38.8950, -77.0367
Quick Link:
https://www.zip-codes.com/zip-code/20056/zip-code-20056.asp

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20056 - Washington, DC

ZIP Code 20056, Washington

Small Town Unique ZIP No Census Data
LocationDistrict Of Columbia County, DC
Area0 sq mi Single Point
Delivery Points164 (66 businesses)
PO Boxes98
ZIP CreatedBefore Oct 2004
Enclosed InZIP Code 20009
Key Facts
  • This ZIP code contains only PO Boxes and doesn't cover a residential area with households
  • The facility maintains 98 PO Boxes, with 67% dedicated to business customers
  • All postal records connect to a single location on 14th Street NW in the U Street corridor
  • This is geographically contained within ZIP code 20009, which handles street delivery for the area
  • The location sits in Columbia Heights and U Street - Cardozo, one of Washington's historically significant neighborhoods

Postal Services

The facility operates at 14th Street NW, where 39 postal records include units at a single address. This pattern is typical for urban PO Box centers that serve apartment buildings, small businesses, and individuals who prefer box service over street delivery. Street delivery exists throughout the surrounding neighborhoods, but some customers choose PO Boxes for security, privacy, or business purposes.

Street Name Patterns

Urban Grid Single Location

Only one street appears in postal records: 14th Street NW, a major north-south corridor through Northwest Washington. The street hosts the PO Box facility serving this specialized ZIP code.

Nearby Areas

Northwest Washington U Street - Cardozo Columbia Heights Columbia Heights Dupont Circle

Business & Employment Statistics


ZIP Code 20056 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:161Source: 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 20056 is located in District Of Columbia County, District of Columbia, within the Washington-Arlington-Alexandria, DC-VA-MD-WV Metropolitan Statistical Area (CBSA 47900) and District of Columbia's 98th Congressional District. This Metro area has a population of 6,263,796 people, about 0.00% of whom live in ZIP Code 20056, 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:98Source: USPS
Congressional Land Area:61.40 sq miSource: Census
PMSA:Washington, DC-MD-VA-WV PMSASource: Census
Intro Date:< 2004-10Source: ZIP-Codes.com
Place FIPS Code:1150000Source: Census
Place Name:Washington city; District of ColumbiaSource: Census

Adjacent & Nearby ZIP Codes


20057 | | 20055

Schools in ZIP Code 20056


We could not locate which school district 20056 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.

Goodwill Excel Center Pcs 1776 G Street Nw
Washington, DC 20006
District: UnknownNearby
School Without Walls Hs 2130 G St. Nw
Washington, DC 20037
District: District of Columbia Public SchoolsNearby
Basis Dc Pcs 410 8th Street Nw
Washington, DC 20004
District: UnknownNearby
Thomson Es 1200 L St. Nw
Washington, DC 20005
District: District of Columbia Public SchoolsNearby
Thaddeus Stevens Early Learning Center 1050 21st Street Nw
Washington, DC 20036
District: District of Columbia Public SchoolsNearby
Triangle Tots 1300 Pennsylvania Ave Nw
Washington, DC 20229
District: Private SchoolNearby
Smithsonian Early Enrichment Center 1000 Constitution Ave Nw Nmnh Rm Ce-G50
Washington, DC 20560
District: Private SchoolNearby
Emerson Preparatory School 1718 Connecitcut Ave Nw
Washington, DC 20009
District: Private SchoolNearby

Colleges & Post Secondary Schools near ZIP Code 20056


University Of The Potomac-Washington Dc Campus 1401 H Street Nw
Washington, DC 20005
Type: Post Secondary
The Chicago School Of Professional Psychology At Washington Dc 901 15th St., Nw
Washington, DC 20005
Type: Post Secondary
Arizona State University - Washington, D.c. 1800 I Street North West
Washington, DC 20006-5407
Type: Post Secondary
Newu University 1090 Vermont Ave Nw
Washington, DC 20005
Type: Post Secondary
Career Technical Institute 1101 Vermont Avenue, N.w Suite L002
Washington, DC 20005
Type: Post Secondary
George Washington University 1918 F Street, Nw
Washington, DC 20052
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 January 1, 2026.

  1. U.S. Postal Service [Last Updated: 1/1/2026], https://www.usps.com
  2. ZIP-Codes.com Proprietary Data Enhancements [Updated: 1/1/2026], 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: 1/1/2026], https://nces.ed.gov