Round Rock, TX Sales Tax Rate

The current total local sales tax rate in Round Rock, TX is 8.250%. The December 2017 total local sales tax rate was also 8.250%.

Sales Tax Breakdown

Texas State6.250%
Williamson County0.000%
Round Rock2.000%
Total 8.250%

Round Rock Details

Round Rock, TX is in Williamson County. Round Rock is in the following zip codes: 78664, 78680, 78681, 78682, 78683.