Grayslake Fairgrounds 50 Us Highway 45 Lake County Fair Association has a new location on the corner of Peterson Rd. and Midlothian Rd. in Grayslake, IL. Our address is 1060 E. Peterson Rd. in Grayslake, Illinois 60030. Come by to see the Fair and on weekends for our special events. Don't miss our great concerts! Call us at (847) 680-7200 or fax us at (847) 680-7260 Grayslake IL Fairgrounds Lake County Fairgrounds www.lakecountyfairassoc.com Lake County Fair Association LC Fair Lake County IL Grayslake Fair Grayslake Fairgrounds Lake County Fairgrounds Lake County Fair Association LC Fair Lake County IL Grayslake Fair Grayslake Fairgrounds Lake County Fairgrounds Business Reviews Lake County Fairgrounds Testimonials