Try the ilfls.com (The Illinois Foreclosure Listing Service). Check the 3 day membership (paid) and see whether it'll work out for you. We use them in our office and always you know that there are the guys recording this info, not some Florida/LA fake scenario
I don't work in that market, but when I pulled up that zip code in our MLS... YES there are foreclosures in that area. You need to contact a local Realtor who knows that specific market and the inventory as they will be able to help you in your home search.