Main Post Office
433 W. Harrison
800.275.8777
Monday - Friday 8:30 am to 11:59
Saturday 9:00 am to 11:00 pm
Sunday 10:00 am to 9:00 pm
*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