Williamson County Property Tax Rate — Texas 2026
In Williamson County, Texas, homeowners pay a median annual property tax of $7,079 on a median home value of $414,600, resulting in an effective property tax rate of 1.71%. This rate is 0.13% higher than the Texas state average (1.58%) and 0.80% higher than the national average (0.91%).
How Williamson County Compares
Homeowners in Williamson County face a relatively high property tax burden, paying more than both the Texas state average and the national average.
Property Tax Calculator for Williamson County
Enter your home’s estimated market value to calculate your approximate annual property tax in Williamson County, Texas.
This estimate uses the effective tax rate of 1.71% based on ACS data. Actual taxes may differ based on local assessments, exemptions, and levies.
Housing Breakdown
Property Tax Details for Williamson County, Texas
The median property tax paid by homeowners in Williamson County is $7,079 per year. Based on a median home value of $414,600, this translates to an effective property tax rate of 1.71%.
For context, the statewide median property tax in Texas is $4,111 with an effective rate of 1.58%, while the national average effective rate stands at 0.91%. Williamson County’s effective rate is 0.13% higher than the Texas state average (1.58%).
Of the 241,754 housing units in Williamson County, approximately 67.08% are owner-occupied and 32.92% are renter-occupied. Homeownership rates can influence local tax policy, as communities with higher ownership rates often see more voter engagement on property tax issues.
Important: The data on this page is for informational purposes only and should not be used as tax advice. Actual property taxes depend on your property’s assessed value, local millage rates, and any applicable exemptions. Contact your county assessor’s office for precise tax information.