Hours Of Operations ADT Illinois Illinois City ADT Hours of Operation and Locations in Illinois City, IL 4.7 - 140 votes 1 Locations in Illinois City www.adt.com ADT Hours Category: Home & Garden ADT - Illinois City, IL 61259 (309) 786-3218 View Store Details Explore Illinois CityView More Sports Vans Recommend For You Stacy Furniture Build-A Bear Workshop J. C. Penney 84 Lumber A.C. Moore Arts & Crafts Adams Golf American Standard American TV & Appliance Andersen Windows & Doors Andronico's Market