The progressive tax versus flat tax debate is raging on — if Illinois moves towards a progressive tax system, where taxes vary based on income, counties with higher median incomes will probably have a lot to say.

Here are the nine counties in Illinois with the highest median household incomes, according to the 2012 census. Under a progressive tax system, people living in these counties would likely be paying more in taxes.

Highest median incomes in Illinois


In case you’re having trouble with the above image, here is a plain-text version of the list below:

Illinois counties with the highest median incomes

1. Kendall County

Median household income: $83,835

2. Lake County

Median household income: $79,085

3. DuPage County

Median household income: $78,538

4. McHenry County

Median household income: $77,325

5. Will County

Median household income: $76,352

6. Monroe County

Median household income: $71,033

7. Kane County

Median household income: $68,674

8. Woodford County

Median household income: $68,552

9. Grundy County

Median household income: $63,840


NEXT ARTICLE: Which counties in Illinois have the highest property taxes?



  1. Don’t let our taxes get any higher. Head over to Sound Off and tell your legislators!
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