CHICAGO - Lake County leads Illinois in wealth, according to a new report from SmartAsset, which analyzed income, home values ...

The U.S. Census Bureau reports Illinois has a median household income of $78,433, though several Southern Illinois counties have median incomes below the state’s average. A May 7 report from ...

It's a sparse club. Here's the map. Below it is the list of counties: Here are the counties, sorted alphabetically by state, with the median income in each listed next: Read next Jump to ...