List of Allstate Stores in Mason City, IA Outlet Note Regular Brands Allstate Iowa Mason City Rating 4.9 based on 77 votes Official Website https://www.allstate.com/ Products Insurance Department Stores Insurance Adjusters NameAddressPhone Name/Address/Phone Allstate outlet - Mason City 471 S Illinois Ave (641) 226-5587 Allstate outlet - Mason City 471 S Illinois Ave (641) 423-4442 Allstate outlet - Mason City 222 1st St Nw (641) 423-4442 People Also Viewed