ZIP Code 20301 in Washington, DC

Data Last Updated: February 1, 2026
City:Washington, District of Columbia
City Alias:Pentagon
County:District Of Columbia County
Timezone:Eastern (GMT -05:00)
Local Time:9:52:26 PM
Population:No Population Data
Area Codes:202 / 771
Classification:Unique [Company/Government]
Coordinates:38.8711, -77.0279
Quick Link:
https://www.zip-codes.com/zip-code/20301/zip-code-20301.asp

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20301 - Washington

Washington, DC | District of Columbia County | Institution

Washington

Entity TypeInstitution
LocationWashington, DC
CountyDistrict of Columbia
FacilityBranch Post Office
Coordinates38.8843, -77.0301
CoverageSingle point (Coordinates mark the primary delivery location)
Key Facts
  • Single-entity ZIP serving Washington
  • Mail handled by USPS branch office
  • Includes The Pentagon and The Pentagon
  • Mail serves 20 business establishments employing around 112 people
  • Delivers to 1 business address (no residential delivery)
  • Located in the Washington, DC metro area
  • World's second-largest office building, 6.5M sq ft, 23,000 workers, built 1943
  • Headquarters of U.S. Department of Defense, located in Virginia with DC mailing address
Entity Type
Institution
Facility
Branch Post Office
Neighborhood
Southwest Employment Area
Buildings
2

About ZIP Code 20301

The Pentagon operates under dedicated ZIP code 20301 as the headquarters of the U.S. Department of Defense. Although physically located in Arlington County, Virginia, the Pentagon has a Washington, D.C. mailing address for official correspondence. Built during World War II and dedicated in 1943, the Pentagon is the world's second-largest office building with 6.5 million square feet and 17.5 miles of corridors. Approximately 23,000 military and civilian employees work in the five-sided structure. This postal designation has been in place for over two decades.

Postal records show 77 ZIP+4 codes routing to The Pentagon for various defense offices and divisions. Census Business Patterns data shows 20 establishments with 112 employees within this ZIP. The Pentagon hosts 106,000 visitors annually for reservation-only tours. Both Pentagon and Washington are valid mailing cities for this designation. Census demographic data is not available for this ZIP.

Business Data
Establishments:20
Employment:112
Delivery Points
Residential:0
Business:1

Named Buildings

Buildings registered in the USPS ZIP+4 database with designated codes for direct mail delivery.

The Pentagon on The Pentagon The Pentagon on Defense Pentagon

Address Format

[Recipient Name]
[Street Address]
WASHINGTON, DC 20301

Business & Employment Statistics


ZIP Code 20301 supports both business and residential activity. According to the Business Census (2024), there are 17 business establishments, employing about 102 people with an annual payroll of $6,581,000. 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:17Source: CBP
1st Quarter Payroll:$1,784,000Source: CBP
Annual Payroll:$6,581,000Source: CBP
# of Employees:102Source: CBP

Geography, Land Area, & Statistical Classifications


ZIP Code 20301 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 5,582,170 people, about 0.00% of whom live in ZIP Code 20301, 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: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


20303 | | 20299

Schools in ZIP Code 20301


We could not locate which school district 20301 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.

Jefferson Ms Academy 801 7th St. Sw
Washington, DC 20024
District: District of Columbia Public SchoolsNearby
Amidon-Bowen Es 401 I St. Sw
Washington, DC 20024
District: District of Columbia Public SchoolsNearby
Eagle Academy Pcs - Capitol Riverfront 1900 Half Street Sw
Washington, DC 20536
District: UnknownNearby
Washington Global Pcs 525 School Street Sw
Washington, DC 20024
District: UnknownNearby
Richard Wright Pcs For Journalism And Media Arts 475 School Street Sw
Washington, DC 20024
District: UnknownNearby
Smithsonian Early Enrichment Center 1000 Constitution Ave Nw Nmnh Rm Ce-G50
Washington, DC 20560
District: Private SchoolNearby
Capitol Hill Day School 210 S Carolina Ave Se
Washington, DC 20003
District: Private SchoolNearby
St Peter School 422 3rd St Se
Washington, DC 20003
District: Private SchoolNearby

Colleges & Post Secondary Schools near ZIP Code 20301


Devry University-Virginia 1400 Crystal Dr, Ste 120
Arlington, VA 22202
Type: Post Secondary
University Of The Potomac-Washington Dc Campus 1401 H Street Nw
Washington, DC 20005
Type: Post Secondary
The Chicago School At Washington Dc 901 15th St., Nw
Washington, DC 20005
Type: Post Secondary
Arizona State University - Washington, D.c. 1801 I Street North West
Washington, DC 20006-5407
Type: Post Secondary
George Washington University 1918 F Street, Nw
Washington, DC 20052
Type: Post Secondary
Newu University 1090 Vermont Ave Nw
Washington, DC 20005
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