What is the sales tax in Rock Falls city? - The sales tax in Rock Falls city of Illinois is 8.25% as of 2025. Use the Rock Falls sales tax calculator to calculate the sales tax for any purchase in Rock Falls.
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Below is a list of the state sales tax, city sales tax, and county tax rate for Rock Falls.
| County | State | City | Zip Code | State Tax | City Tax | County Tax | Total Tax |
|---|---|---|---|---|---|---|---|
| Whiteside | Illinois | Rock Falls | 61071 | 6.25% | 1% | 1% | 8.25% |