Texas Sales Tax Rates: Williamson County
Williamson County, Texas Sales Tax Rate 2026 Up to 8.25%
While many counties do levy a countywide sales tax, Williamson County does not. The Texas sales tax of 6.25% applies countywide. Some cities and local governments in Williamson County collect additional local sales taxes, which can be as high as 2%.
Here's how Williamson County's maximum sales tax rate of 8.25% compares to other counties around the United States:
- Higher maximum sales tax than any other Texas counties
- Higher maximum sales tax than 69% of counties nationwide
Tax Rates By City in Williamson County, Texas
The total sales tax rate in any given location can be broken down into state, county, city, and special district rates. Texas has a 6.25% sales tax and Williamson County collects an additional N/A, so the minimum sales tax rate in Williamson 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 Williamson County, including all local taxes.
| City | Sales Tax Rate | Tax Jurisdiction |
|---|---|---|
| Round Rock | 8.25% | Williamson County Emergency Services District No 9 |
| Cedar Park | 8.25% | Williamson County Emergency Services District No 2 |
| Round Rock | 8.25% | Williamson County Emergency Services District No 2 |
| Georgetown | 8.25% | Williamson County Emergency Services District No 9 |
| Leander | 8.25% | Williamson County Emergency Services District No 9 |
| Austin | 8.25% | Williamson County Emergency Services District No 2 |
| Hutto | 8.25% | Williamson County Emergency Services District No 9 |
| Georgetown | 8.25% | Williamson County Emergency Services District No 8 |
| Taylor | 8.25% | Williamson |
| Liberty Hill | 8.25% | Liberty Hill Pub Lib Dist |
| Jarrell | 8.25% | Williamson |
| Florence | 8.25% | Williamson County Emergency Services District No 8 |
| Granger | 8.25% | Williamson |
| Round Rock | 8.25% | Round Rock |
| Georgetown | 8.25% | Georgetown |
| Cedar Park | 8.25% | Cedar Park |
| Thrall | 8.25% | Williamson |
| Leander | 8.25% | Leander |
| Coupland | 8.25% | Williamson |
| Mc Neil | 8.25% | Travis County Emergency Svcs No 4 |
| Schwertner | 8.25% | Williamson Co Esd No 5 Sp |
| Walburg | 8.25% | Williamson |
| Weir | 8.25% | Weir |
Texas Sales Tax Rates by Zip Code:
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Williamson County, Texas has a maximum sales tax rate of 8.25% and an approximate population of 323,643.
Sales tax rates in Williamson County are determined by twelve different tax jurisdictions, Cedar Park, Georgetown, Leander, Liberty Hill Pub Lib Dist, Round Rock, Travis County Emergency Svcs No 4, Weir, Williamson, Williamson Co Esd No 5 Sp, Williamson County Emergency Services District No 2, Williamson County Emergency Services District No 8 and Williamson County Emergency Services District No 9.
Back to Texas Sales Tax Handbook Sales tax rates for Williamson County are current as of June 2026
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