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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 more convenient to use the most popular functions on, anytime, anywhere.

  • is one of the most frequently visited government sites with 1.7 billion visits in 2016 — averaging nearly 4.6 million visitors each day.
  • In 2016, stamp and retail sales at The Postal Store, the official online Post Office, totaled nearly $280 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 564 million labels, which generated more than $1.3 billion in sales in 2016.
  • Internet Change-of-Address allows customers to change addresses online, and offers them coupons for
    move-related products and services. More than 16.6 million address changes were submitted online in
  • In order of popularity, the top sites in 2016:

    1. USPS Tracking

    336 million visitors

    2. ZIP Code Lookup

    32 million visitors

    3. The Postal Store

    24 million visitors

    4. PO Locator

    21 million visitors

    5. My USPS

    19 million visitors

  • There’s a Post Office on your phone. The Postal Service app — USPS Mobile — is available on Apple and Android platforms. Some of the most popular functions currently available on — USPS Tracking, Post Office Locator, ZIP Code Lookup, calculating postage, holding mail, requesting Package Pickup and ordering shipping supplies — are now available on most smart phones.
  • 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 2016, the Postal Service app was downloaded 2.2 million times across all platforms. 
  • In 2016, there were more than 50 million visitors to the mobile site — — averaging more than 448,000 visits per day
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