About Mainstreet
History
Mainstreet Organization of REALTORS® has a long history of serving REALTORS® and the communities our members reside, work and volunteer in. What began in 1921 as the then DuPage Association of REALTORS®, the organization grew and merged many times to become Mainstreet Organization of REALTORS® in 2007.
Today, with more than 20,000 members, Mainstreet and our members cover more than 200 municipalities in DuPage County, Lake County and Western and Southern Suburban Cook County.
