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 109 N Prospect St, Illinois 61238-1148 Phone Number 2567284493 Fax Number 3099372133 Website http://www.usps.com CategoriesPost Offices Post navigationPrevious post: M C ScientificNext post: Coldwell Banker