Aerial view of Chicago Downtown with suburbs; these suburbs are where the top 5 most expensive ZIP codes can be found. So, read on to find out the most expensive ZIP codes in Illinois in 2025, relying ...
ILLINOIS, USA — Nearly 150 more high-risk zip codes have been added to the Illinois Department of Public Health's lead testing list. IDPH keeps track of zip codes throughout the state where residents ...
Locally Researched by: Craig Douglas, Ethan Nelson and Andrew Vaupel, American City Business Journals Oct 16, 2025, 5:00am CDT Editor's Note: The Business Journals evaluated almost 33,200 national ZIP ...
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