Senator Harmon always likes hearing from his constituents. Frequently, the best way to reach Senator Harmon is by e-mail at This email address is being protected from spambots. You need JavaScript enabled to view it., particularly during legislative sessions which run from January through May. Below is information on contacting Senator Harmon at his Constituent Service Office in Oak Park and his Springfield Office at the Illinois Capitol Building.

Senator Don Harmon's Constituent Service Office
6933 W. North Avenue
Oak Park, Illinois 60302
Phone: (708) 848-2002
Fax: (708) 848-2022

Senator Don Harmon's Springfield Office
329 Capitol Building
Springfield, Illinois 62706
Phone: (217) 782-8176

Contact Senator Don Harmon by e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.