United States Post Offices - Downtown Chicago

433 W. Harrison Street
Chicago IL, 60699
Phone: 800.275.8777
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Main Post Office
433 W. Harrison
800.275.8777
(Open 24 Hours / 7 days a week)

*Loop Station
211 S. Clark Street
312.427.0016

*Fort Dearborn Office
540 N. Dearborn
312.644.9191

*Ontario Office
277 E. Ontario
312.642.3576

*Hours:
Monday - Friday: 8:00 am to 5:00 pm
Saturday - 8:00 am to Noon

United States Post Offices - Downtown Chicago

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