List of PETCO Stores in Alton, IL Outlet Note Regular Brands PETCO Illinois Alton Rating 4.6 based on 94 votes Official Website http://www.petco.com/ Products Bird Food Fish Dog Food Chews Crates Dog Toys Cat Food Cat Furniture Pet Bedding Bird Cage NameAddressPhone Name/Address/Phone PETCO outlet - Alton 313 Homer M. Adams Parkway (618) 462-2950 People Also Viewed