Okay, please do not confuse the Mighty Midwest with the Dynamic Central Region.
j/k -- (been a member of both.)
As stated by Chaos, there are a few chapters in the Chicago area besides Chicago Alumnae--Schaumberg/Hoffman Estates, Glen Ellyn, Joliet/South Suburban. But unfortunately the Midwest website does not have a chapter locator, nor are the state coordinators linked, so it would be hard for Personality to try and find someone short of contacting the RD herself.
Personality, PM me with your vital DST info and I will reply with contact info in the Chicago area.