Homeowners in Williamson County, Texas paid a median $7,205 a year in property tax on a median home worth $447,000, an effective rate of about 1.61% (Census 2020–2024).
1.49%Texas statewide · US 0.94%
How Williamson County compares
Effective rate (median tax ÷ median value)
Median tax paid per year
Tax on a home here
At the local 1.61% effective rate
| Home value | Estimated yearly tax | Per month |
|---|---|---|
| $150,000 | $2,418 | $201 |
| $250,000 | $4,030 | $336 |
| $350,000 | $5,641 | $470 |
| $500,000 | $8,059 | $672 |
Cities and towns in Williamson County
| Place | Median tax | Median value | Rate |
|---|---|---|---|
| Round Rock | $6,424 | $418,600 | 1.53% |
| Georgetown | $6,247 | $429,100 | 1.46% |
| Cedar Park | $8,893 | $513,600 | 1.73% |
| Leander | $9,083 | $506,200 | 1.79% |
| Hutto | $6,790 | $365,700 | 1.86% |
| Brushy Creek | $7,846 | $499,300 | 1.57% |
| Taylor | $4,438 | $285,800 | 1.55% |
| Sonterra | $5,592 | $273,600 | 2.04% |
| Liberty Hill | $6,220 | $403,200 | 1.54% |
| Santa Rita Ranch | $10,001 | $515,700 | 1.94% |
| Jarrell | $5,317 | $346,300 | 1.54% |
| Bartlett | $2,483 | $218,900 | 1.13% |
Buying a home in Williamson County? 2026 loan limits
Related
- Texas property tax by countyall counties ranked
- Denton County, TX1.61% effective
- Hidalgo County, TX1.62% effective
- Dawson County, TX1.62% effective
- Wilbarger County, TX1.60% effective
- Harris County, TX1.62% effective
Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, tables B25103 (median real estate taxes paid), B25077 (median home value), B25003, B25088, B19013 and B01003. These are 2020–2024 medians reported by owner-occupants, not 2026 tax bills or official mill rates. The effective rate here is median tax ÷ median home value. Actual bills depend on assessed value, exemptions (homestead, senior, veteran) and local levies. Check with your county assessor or treasurer. Not tax advice.
Frequently asked questions
What is the property tax rate in Williamson County, Texas?
Homeowners in Williamson County, Texas paid a median $7,205 a year in property tax on a median home worth $447,000, an effective rate of about 1.61% (Census 2020–2024).
How much is property tax on a $300,000 home in Williamson County?
About $4,836 a year ($403 a month) at the 1.61% median effective rate. Your bill depends on assessed value and exemptions.
Is Williamson County property tax high?
It ranks #227 lowest of 254 Texas counties. The state median effective rate is 1.49% and the US rate is 0.94%.
Where do I pay property tax in Williamson County?
Bills are issued and collected by the Williamson County treasurer or tax collector, based on values set by the county assessor.