Posted on January 1, 2019 April 7, 2019 by WebsiteYellowPages.com US Post Office 1 2 3 4 50.000 CategoriesPost Offices LocationsIllinois Bookmark Contact Information Business Name US Post Office Address 600 W Jefferson St, Illinois 61550-1579 Phone Number 2567284493 Fax Number 3092666421 Website http://www.usps.com CategoriesPost Offices Post navigationPrevious post: noneNext post: Platinum Partners Realtors