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This Post Office is always open —

USPS.COM and USPS Mobile

The Postal Service website — — is like an online Post Office at your fingertips, and is open for business 24/7. The Postal Service’s smart-phone apps make it even quicker to use the most popular functions on, anytime and anywhere.

  • is one of the most frequently visited government sites with 1.5 billion visits in 2015 — averaging more than 3 million visitors each day.
  • In 2015, stamp and retail sales at The Postal Store, the official online Post Office, totaled more than $277 million.
  • We’re multi-lingual — the Postal Service offers in Spanish and Simplified Chinese.
  • Click-N-Ship allows customers to print shipping labels with postage for Priority Mail, Priority Mail Express, Global Express Guaranteed, Priority Mail International and Priority Mail Express International.
  • Click-N-Ship customers created 53.6 million labels, which generated more than $555.3 million in sales in 2015.
  • Internet Change-of-Address allows customers to change addresses and offers coupons for move-related products and services. More than 14 million address changes were submitted online in 2015.
  • In order of popularity, the top sites in 2015:

    1. Tracking

    317 million visitors

    2. ZIP Code Lookup

    36.5 million visitors

    3. PO Locator

    24 million visitors

    4. Postal Store

    23.6 million visitors

    5. Click-N-Ship

    16.5 million visitors

  • There’s a Post Office on your phone. Some of the most popular functions currently available on — USPS Tracking, Post Office Locator, ZIP Code Lookup, calculating postage, holding mail, requesting a package pickup and ordering shipping supplies — are now available on most smart phones.
  • The Postal Service app — USPS Mobile — is available on Apple, Android and Blackberry platforms.
  • Customers who have Android or Apple smart phones or tablets with cameras and have downloaded the USPS Mobile app can scan barcoded shipping labels to track packages and other mail.
  • In 2015, the Postal Service app was downloaded 1.7 million times across all platforms.
  • In 2015, there were more than 77 million visitors to the mobile site — — averaging 288,000 visits per day.
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