Illinois Sales Tax Rates: Dekalb County
Dekalb County, Illinois Sales Tax Rate 2025 Up to 8.25%
While many counties do levy a countywide sales tax, Dekalb County does not. The Illinois sales tax of 6.25% applies countywide. Some cities and local governments in Dekalb County collect additional local sales taxes, which can be as high as 2%.
Here's how Dekalb County's maximum sales tax rate of 8.25% compares to other counties around the United States:
- Lower maximum sales tax than 54% of Illinois counties
- Higher maximum sales tax than 73% of counties nationwide
Tax Rates By City in Dekalb County, Illinois
The total sales tax rate in any given location can be broken down into state, county, city, and special district rates. Illinois has a 6.25% sales tax and Dekalb County collects an additional N/A, so the minimum sales tax rate in Dekalb County is 6.25% (not including any city or special district taxes). This table shows the total sales tax rates for all cities and towns in Dekalb County, including all local taxes.
| City | Sales Tax Rate | Tax Jurisdiction |
|---|---|---|
| Dekalb | 8% | Dekalb |
| Sycamore | 8% | Dekalb |
| Sandwich | 8.25% | Sandwich |
| Genoa | 7.75% | Boone |
| Somonauk | 6.5% | La Salle |
| Cortland | 8% | Dekalb |
| Hinckley | 7.25% | Hinckley |
| Kirkland | 7.75% | Boone |
| Kingston | 7.75% | Boone |
| Waterman | 7.25% | Waterman |
| Malta | 6.25% | Dekalb |
| Shabbona | 7.25% | Shabbona |
| Clare | 6.25% | Dekalb |
Illinois Sales Tax Rates by Zip Code:
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Dekalb County, Illinois has a maximum sales tax rate of 8.25% and an approximate population of 82,149.
Sales tax rates in Dekalb County are determined by seven different tax jurisdictions, Boone, Dekalb, Hinckley, La Salle, Sandwich, Shabbona and Waterman.
Back to Illinois Sales Tax Handbook Sales tax rates for Dekalb County are current as of April 2025
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