Posted on January 1, 2019 January 1, 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 26 S Madison St, Illinois 60543-7210 Phone Number 5058649576 Fax Number 6305548410 Website http://www.usps.com CategoriesPost Offices Post navigationPrevious post: MIESPICTURESNext post: Jones Lemon Graham & Clancy