http://www.openstates.org provides contact information for legislators throughout the United States. 

 

For residents of DuPage County, a complete listing of an individual's representatives may be found through the Election Division website https://www.dupagecounty.gov/election/ by scrolling down to the "For Voters" section and clicking on the “Am I registered to vote?” button. Once contact information is entered, one's registration status is returned along with a complete list of legislators with contact info for each.