United States Postal Service Headquarters & Corporate Office

About the United States Postal Service

The United States Postal Service (USPS) is an independent agency of the U.S. federal government and the nation’s premier postal and delivery service, connecting every home, business, and individual across all 50 states, U.S. territories, and military installations worldwide — 365 days a year, regardless of weather, distance, or geography. Founded constitutionally in 1775 when Benjamin Franklin was appointed the first Postmaster General by the Continental Congress, and reorganized as an independent establishment under the Postal Reorganization Act of 1970, USPS operates as a self-funded agency that receives no direct federal tax dollars for its operations. USPS delivers to approximately 168 million delivery points — more than any other delivery network in the world — and reported operating revenue of $80.5 billion for fiscal year 2025, a 1.2% increase driven by USPS Ground Advantage parcel growth and strategic pricing. The agency employs approximately 640,000 career and non-career employees, making it one of the largest civilian employers in the United States. USPS is headquartered at 475 L’Enfant Plaza SW in Washington, D.C. — a granite building just a few blocks south of the National Mall that has served as USPS headquarters since 1973. Following the retirement of Louis DeJoy as the 75th Postmaster General on March 24, 2025, Deputy Postmaster General Doug Tulino assumed interim leadership while the USPS Board of Governors conducts a search for the 76th Postmaster General.

Quick Information

Industry

Federal Postal & Package Delivery Services

Founded

1775 (Continental Post Office); Reorganized 1971 as USPS

Number of Employees

Approximately 640,000 career and non-career employees nationwide

Corporate Office Hours

Customer service is available Monday through Friday, 8:00 AM – 8:30 PM ET; Saturday 8:00 AM – 6:00 PM ET. Local post offices typically open Monday through Friday 9:00 AM to 5:00 PM, and Saturday 9:00 AM to 1:00 PM, varying by location.

Email

Available through online contact form at usps.com/help

Website

www.usps.com

Contact Page

www.usps.com/help/contact-us.htm

Office of Consumer Advocate

postconsumer@usps.gov

Careers Page

usps.com/careers

Products & Services

USPS provides a comprehensive suite of domestic and international mail, package, and logistics services for consumers, businesses, and government entities. Their full range of products and services includes:

• First-Class Mail — standard letter and flat mail delivery with typical 1–5 business day transit
• Priority Mail — fast 1–3 day domestic delivery with flat-rate and variable-weight options and $100 insurance included
• Priority Mail Express — USPS’s fastest domestic service offering overnight to 2-day delivery with a money-back guarantee, 365 days a year including Sundays and holidays
• USPS Ground Advantage — USPS’s rebranded and consolidated ground package service (replacing First-Class Package, Retail Ground, and Parcel Select) providing reliable 2–5 day affordable parcel delivery
• Media Mail — discounted mail class for books, media, and educational materials
• Certified Mail & Registered Mail — secure legal document delivery with delivery confirmation and tracking
• USPS Marketing Mail — bulk mail and direct marketing services for businesses
• Every Door Direct Mail (EDDM) — targeted saturation mailing service for local businesses reaching every address within a defined route without the need for individual addresses
• PO Boxes — secure private mailbox rental available at post office locations nationwide
• Package Intercept — a service allowing customers to redirect a package that has not yet been delivered
• Informed Delivery — free daily email digest showing greyscale images of letter mail and tracking updates for incoming packages
• Click-N-Ship — USPS’s online postage printing and label generation platform for consumers and small businesses
• Stamps — traditional and Forever stamps for first-class and customized mail
• International Mail Services — First-Class Mail International, Priority Mail International, and Priority Mail Express International for global shipping to 190+ countries
• USPS PO Box Online — digital PO Box address service accepting mail and packages from all carriers
• USPS Passport Acceptance Services — in-person passport application acceptance services available at select post office locations nationwide

Corporate Phone Numbers

Main Customer Service Number (1-800-ASK-USPS)

1-800-275-8777 (1-800-ASK-USPS) — primary USPS customer service line for all delivery inquiries, package tracking, mail holds, complaints, and general postal questions. Available Monday through Friday 8:00 AM to 8:30 PM ET, Saturday 8:00 AM to 6:00 PM ET. TTY: 711.

USPS Technical Support

1-800-344-7779 — dedicated technical support line for USPS.com, Click-N-Ship, Informed Delivery, and all online USPS services. Available Monday through Friday 8:00 AM to 8:30 PM ET, Saturday 8:00 AM to 6:00 PM ET.

USPS Tracking

1-800-222-1811 — dedicated automated and live package tracking and delivery status line. Available Monday through Friday 8:00 AM to 8:30 PM ET, Saturday 8:00 AM to 6:00 PM ET.

Postal Inspection Service (Fraud & Mail Theft)

1-877-876-2455 — dedicated law enforcement line for reporting mail theft, mail fraud, identity theft, suspicious mail, and mail-related crimes. Operated by the U.S. Postal Inspection Service (USPIS). Available Monday through Friday 8:00 AM to 4:30 PM ET

USPS Office of the Inspector General (OIG)

1-888-877-7644 (1-888-USPS-OIG) — dedicated hotline for reporting suspected misconduct, waste, fraud, and abuse by USPS employees or contractors. Available 24 hours a day, 7 days a week.

Postal Regulatory Commission

(202) 789-6800 — dedicated line for complaints about USPS policy changes, postage rate increases, and regulatory matters. Available Monday through Friday during regular business hours.

Corporate Headquarters Number

(202) 268-2000 — main USPS headquarters switchboard at 475 L’Enfant Plaza SW, Washington, D.C. Available Monday through Friday during regular business hours.

How to Reach a Real Person at USPS

The fastest way to speak with a live USPS customer service representative is to call 1-800-ASK-USPS (1-800-275-8777). The automated system will prompt you to say or press the option matching your inquiry. To bypass the automated system and reach a live agent directly, say “agent” or “representative” clearly at any point during the automated menu, or press 0 repeatedly. Live agent hours are Monday through Friday 8:00 AM to 8:30 PM ET and Saturday 8:00 AM to 6:00 PM ET. For the shortest wait times, calling on weekday mornings before 9:00 AM ET or on Saturday mornings generally results in shorter hold times.

You can also submit a service request online by visiting usps.com/help/contact-us.htm and selecting the appropriate topic for your inquiry — this generates a formal case number and typically receives a response within 1 to 3 business days. For local delivery complaints, contacting your local post office directly and speaking with the Station Manager is often the most effective approach for recurring missed delivery, misdelivered mail, or carrier-specific issues. USPS also responds to inquiries through its @USPSHelp account on X (Twitter).

USPS Headquarters & Corporate Office Address

The United States Postal Service operates its national headquarters at 475 L’Enfant Plaza SW in Washington, D.C. — a modern granite office building completed in 1973 and designed by Czech-American architect Vlastimil Koubek. The building is one of four office structures framing L’Enfant Plaza, named in honor of Pierre L’Enfant, the French-American architect who designed the federal city of Washington. The headquarters building, which sits just a few blocks south of the National Mall and is accessible from the L’Enfant Plaza Metro station, houses USPS executive leadership, the Board of Governors, the Office of the Consumer Advocate, and all major corporate functions supporting the world’s largest postal network.

Prior to the current headquarters, USPS operated from 1200 Pennsylvania Avenue NW — a 1934 classical revival-style building not far from the White House — before relocating to L’Enfant Plaza in 1973. In addition to its D.C. headquarters, USPS operates 7 USPS Area offices across the country and a national network of approximately 31,000 post offices, more than 60 Regional Processing and Distribution Centers, and thousands of carrier facilities, annexes, and retail stations.

United States Postal Service — National Headquarters

475 L’Enfant Plaza SW
Washington, D.C. 20260-0004
United States

USPS Office of the Consumer Advocate

475 L’Enfant Plaza SW, Room 4012
Washington, D.C. 20260-2200
United States

USPS Capital Metro Area Office

900 Brentwood Road NE
Washington, D.C. 20066
United States

USPS Eastern Area Office

P.O. Box 7500
Philadelphia, Pennsylvania 19101
United States

USPS Southern Area Office

P.O. Box 16489
Atlanta, Georgia 30321
United States

USPS Great Lakes Area Office

Room 50190, 433 W. Harrison Street
Chicago, Illinois 60669
United States

USPS Western Area Office

P.O. Box 2000
Pasadena, California 91102
United States

USPS Rocky Mountain Area Office

Suite 900, 1745 Stout Street
Denver, Colorado 80202
United States

For all formal written complaints and consumer advocacy matters, write to the USPS Office of the Consumer Advocate at 475 L’Enfant Plaza SW, Room 4012, Washington, D.C. 20260-2200. Include your full name, mailing address, tracking number or article number (if applicable), a detailed description of your complaint, and the specific resolution you are requesting.

How to File a Complaint Against USPS

Step 1 — Contact Your Local Post Office
For recurring delivery issues, misdelivered mail, or carrier-related complaints, speak directly with the Station Manager at your local USPS post office. Station managers have the authority to investigate delivery problems, reassign carrier routes, and follow up directly with carriers assigned to your address. This is the most effective first step for neighborhood-level delivery issues.

Step 2 — Call 1-800-ASK-USPS
Call 1-800-275-8777 to open a formal service request. Have your tracking number (if applicable), your mailing address, and a description of your complaint ready. The representative will open a case, provide a reference number, and submit your complaint for investigation. Cases involving lost or delayed packages are typically reviewed within 3 to 5 business days.

Step 3 — Submit an Online Complaint
File a formal complaint online at usps.com/help/contact-us.htm. Select the topic that best matches your issue from the dropdown menu and complete the online form. Common categories include delivery issues, employee conduct, facility complaints, and billing disputes. Online submissions generate a case number and typically receive a response within 1 to 3 business days.

Step 4 — Contact the USPS Consumer and Industry Contact Office
If your complaint is not resolved through standard customer service, contact your regional USPS Consumer and Industry Contact (CIC) office. These offices handle escalated consumer disputes and can be reached by phone or in writing. Locate your regional CIC office at usps.com.

Step 5 — Write to the Office of the Consumer Advocate
For persistent unresolved complaints, write a formal letter to the United States Postal Service, Office of the Consumer Advocate, 475 L’Enfant Plaza SW, Room 4012, Washington, D.C. 20260-2200. Include your full name, address, all prior case numbers, a detailed description of the issue, and the resolution you are requesting.

Step 6 — Report Mail Theft or Fraud to the USPIS
For complaints involving mail theft, mail fraud, identity theft, suspicious packages, or mail-related crimes, file a complaint with the U.S. Postal Inspection Service at postalinspectors.uspis.gov or by calling 1-877-876-2455. The USPIS is a federal law enforcement agency with full investigative and prosecutorial authority.

Step 7 — Report Employee Misconduct to the OIG
For complaints involving suspected misconduct, waste, fraud, or abuse by a USPS employee or contractor, contact the USPS Office of Inspector General at usps.com/oig or call 1-888-USPS-OIG (1-888-877-7644).

Step 8 — Contact the Postal Regulatory Commission
If your complaint involves USPS policy changes, postage rate increases, or service standard modifications, contact the Postal Regulatory Commission at prc.gov or by calling (202) 789-6800. The PRC has the authority to review and rule on USPS regulatory matters.