United States Postal Service

100 W Randolph St
Chicago IL 60601
18 Reviews
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Opening Hours

  • Mon: 9am-6pm
  • Tue: 9am-6pm
  • Wed: 9am-6pm
  • Thu: 9am-6pm
  • Fri: 9am-6pm
  • Sat: 9am-1pm

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Visit your local Post Office at 100 W Randolph St! The Postal Service mission is to provide a reliable, efficient, trusted and affordable universal delivery service that connects people and helps businesses grow. The U.S. Postal Service is the only delivery service that reaches every address in the nation: 155 million residences, businesses and Post Office Boxes. With more than 31,600 retail locations and the most frequently visited website in the federal government, the Postal Service delivers 47 percent of the world’s mail.