Grundy County taxpayers paid the 39th largest sum in sales taxes in June, according to Illinois tax records.
In total, residents paid $553,688 in sales taxes during June.
The county also ranked 39th in the Prairie State the month before, with $538,975 spent in sales taxes.
The largest share of sales taxes paid by Grundy County residents in June came from the Countywide Sales Tax.
The Countywide Sales Tax, a crucial revenue stream, is primarily allocated for county governments’ use.
A 2025 WalletHub study found that Illinois has the highest overall taxes in the U.S., with rates more than 50% higher than the national average. The study estimates that a median household in Illinois pays an effective tax rate of 16.58%, or about $13,099 per year.
| Type of Tax | Total Amount Collected | % Change From Previous Month |
|---|---|---|
| Countywide Sales Tax | $422,912 | 1.9% |
| County Sales Tax | $130,776 | 5.5% |



