A recent report from PropertyShark, a property research website for investors, lists Illinois' most expensive zip codes—and notes what it calls an “enclave of affluence” in the Chicago area.

The 60043 zip code, an area which contains the small but wealthy North Shore suburb of Kenilworth, has once again been ranked as the wealthiest zip code in Illinois. According to data compiled by ...

Wheaton, Illinois homes(ZIP 60189) rank No. 12 on Realtor.com®’s 2025 Hottest ZIP Codes list. Located in the Chicago-Naperville-Elgin metro area, this DuPage County community is a sought-after ...

Median home values have increased in 11 of these 12 southwest Illinois zip codes over the last year. Here’s data by zip code. Submitted photo Median home values in a number of southwest Illinois zip ...