About Mainstreet
Mainstreet Organization of REALTORS® is the largest local real estate association in the State of Illinois - and the 7th largest in the nation - representing more than 20,000 real estate professionals.
Mainstreet REALTORS® Members provide service to their clients in more than 200 Chicagoland communities distributed throughout DuPage, Lake, West and South Cook Counties. Since our founding as the DuPage Association of REALTORS® in 1921 - our continuing mission is to empower real estate professionals to thrive and find joy in their careers. We champion our members' goals with integrity, intelligence and inspiration.
