Illinois Sales Tax Rates: Warren County
Warren County, Illinois Sales Tax Rate 2026 Up to 11%
A county-wide sales tax rate of 1.75% is applicable to localities in Warren County, in addition to the 6.25% Illinois sales tax.
Some cities and local governments in Warren County collect additional local sales taxes, which can be as high as 3%.Here's how Warren County's maximum sales tax rate of 11% compares to other counties around the United States:
- Higher maximum sales tax than 99% of Illinois counties
- Higher maximum sales tax than 96% of counties nationwide
Tax Rates By City in Warren 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 Warren County collects an additional 1.75%, so the minimum sales tax rate in Warren County is 8% (not including any city or special district taxes). This table shows the total sales tax rates for all cities and towns in Warren County, including all local taxes.
| City | Sales Tax Rate | Tax Jurisdiction |
|---|---|---|
| Monmouth | 11% | Monmouth |
| Avon | 8% | Mcdonough |
| Roseville | 8% | Mcdonough |
| Alexis | 8% | Warren |
| Kirkwood | 8% | Warren |
| Cameron | 8% | Warren |
| Little York | 8% | Warren |
| Gerlaw | 8% | Warren |
| Berwick | 8% | Warren |
| Smithshire | 8% | Warren |
Illinois Sales Tax Rates by Zip Code:
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Warren County, Illinois has a maximum sales tax rate of 11% and an approximate population of 15,465.
Sales tax rates in Warren County are determined by three different tax jurisdictions, Mcdonough, Monmouth and Warren.
Back to Illinois Sales Tax Handbook Sales tax rates for Warren County are current as of June 2026
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