Deanne Marie Mazzochi is a Republican member of the Illinois House of Representatives from the 47th district. The 47th district includes all or parts of Elmhurst, Oak Brook, Oakbrook Terrace, Western Springs, Clarendon Hills, Hinsdale, Westmont, and Downers Grove. She was the Chair of the College of DuPage Board of Trustees prior to her appointment to the Illinois House of Representatives. Mazzochi was sworn in to succeed Patti Bellock on July 15, 2018. As of July 3rd, 2022, Representative Mazzochi is a member of the following Illinois House committees: