Welcome to USPS.com. Track packages, pay and print postage with Click-N-Ship, schedule free package pickups, look up ZIP Codes, calculate postage prices, and find everything you need …

Send mail and packages with USPS online shipping options. Choose your mail service by delivery speed, cost, and additional services like tracking and insurance.

Compare USPS shipping options like Priority Mail Express, Priority Mail, First-Class Mail, and USPS Ground Advantage to find the service that's right for you.

Alert: WINTER WEATHER IN THE GREAT LAKES AND NORTHEASTERN US MAY DELAY FINAL DELIVERY OF YOUR MAIL AND PACKAGES. Read more ›

USPS.com® - USPS Tracking®

USPS shows you how to send a letter or postcard in the U.S., from choosing an envelope, writing the address, buying and applying stamps, and finding a drop-off location.

Track USPS package deliveries, get tracking text and email notifications, forward mail, change your address, and learn about setting up PO boxes or home mailboxes.

Informed Delivery is a free service from USPS that shows you preview images of incoming mail, plus status updates about your incoming and outbound packages. Get notifications in a …

Click-N-Ship® for Business - a USPS.com application

USPS - Track Information about tracking mail