Government go Results Found: 4 Button group with nested dropdown Downers Grove Township Republican Organization 829 Old Orchard Ave Downers Grove IL 60516 630-796-9800 Gregory A. Boltz, D.G. Assessor Gregory A. Boltz, D.G. Assessor 4340 Prince St Downers Grove IL 60515 (630) 719-6630 State Representative Deanne Mazzochi State Representative Deanne Mazzochi 1 S Cass Avenue Westmont Centre, Suite 205 Westmont IL 60559 (630) 852-8633 Village of Hinsdale Village of Hinsdale 19 E Chicago Avenue Hinsdale IL 60521 (630) 789-7000