List of Denny's Stores in Waterloo, IL Outlet Note Regular Brands Denny's Illinois Waterloo Rating 4.8 based on 89 votes Products Fast Food Restaurant Pancake House Coffee Shop Steakhouse NameAddressPhone Name/Address/Phone Denny's outlet - Waterloo 959 N Ilinois Rt 3 (618) 939-1700 Denny's outlet - Waterloo 6459 Brand Lake Dr (618) 939-4383 Denny's outlet - Waterloo 910 N Ilinois Rt 3, Waterloo, Il, 62298, Us (618) 939-1700 People Also Viewed