Illinois Sales Tax Rates: Washington County
Washington County, Illinois Sales Tax Rate 2026 Up to 7.75%
While many counties do levy a countywide sales tax, Washington County does not. The Illinois sales tax of 6.25% applies countywide. Some cities and local governments in Washington County collect additional local sales taxes, which can be as high as 1.5%.
Here's how Washington County's maximum sales tax rate of 7.75% compares to other counties around the United States:
- Lower maximum sales tax than 84% of Illinois counties
- Higher maximum sales tax than 53% of counties nationwide
Tax Rates By City in Washington 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 Washington County collects an additional N/A, so the minimum sales tax rate in Washington 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 Washington County, including all local taxes.
| City | Sales Tax Rate | Tax Jurisdiction |
|---|---|---|
| Nashville | 7.75% | Perry |
| Okawville | 6.25% | Washington |
| Ashley | 7.25% | Ashley |
| Addieville | 6.25% | Washington |
| Hoyleton | 6.25% | Washington |
| Oakdale | 7.75% | Perry |
| Irvington | 6.25% | Washington |
| Du Bois | 7.75% | Perry |
| Richview | 6.75% | Jefferson |
| Radom | 6.25% | Radom |
Illinois Sales Tax Rates by Zip Code:
Need an updated list of Illinois sales tax rates for your business? Download our Illinois sales tax database!
Washington County, Illinois has a maximum sales tax rate of 7.75% and an approximate population of 12,223.
Sales tax rates in Washington County are determined by five different tax jurisdictions, Ashley, Jefferson, Perry, Radom and Washington.
Back to Illinois Sales Tax Handbook Sales tax rates for Washington County are current as of June 2026
Tax compliance done right
Tired of manually handling sales taxes? Avalara can automate your multi-state sales tax returns, let you know when you've triggered nexus, and more. Request a free demo of Avalara today.