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 19,000 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.
Downers Grove
Headquarters :: 6655 Main Street, Downers Grove, IL 60516
Monday - Friday, 8:30 a.m. -5 p.m.Rolling Meadows
3701 Algonquin Road, Ste. 650, Rolling Meadows, IL 60008
Monday - Friday, 8:30 a.m. - noon, 1 - 5 p.m.Libertyville
1580 S. Milwaukee Avenue, Suite 312, Libertyville, IL 60048
Monday - Friday, 8:30 a.m. - noon, 1 - 5 p.m.Tinley Park
16345 S. Harlem Avenue, Suite 200, Tinley Park, IL 60477
Monday - Friday, 8:30 a.m. - noon, 1 - 5 p.m.