Williamson County property tax
Homeowners in Williamson County, Texas typically pay about 1.61% of their home's value in property tax each year — a median bill of $7,205 on a median home value of $447,000.
Typical effective rate
1.61%
higher than 8% of U.S. counties
Median tax paid
$7,205
per year
Median home value
$447,000
In TX
#26
of 250 ranked counties
At a glance
- Effective rate 1.61% — 72% higher than the U.S. median of 0.94%, and 8% higher than the Texas median of 1.49%.
- With vs. without a mortgage — median tax $7,632 for mortgaged homes, $6,185 for homes owned outright.
- State ranking — 26th highest effective rate of 250 ranked Texas counties; nationally it sits around the 92th percentile.
Estimate a bill for Williamson County
Apply this county's typical effective rate (1.61%) to a home value of your choice.
Frequently asked questions
What is the property tax rate in Williamson County, TX?
The typical effective property-tax rate in Williamson County is 1.61% of a home's value per year, based on median taxes paid ($7,205) divided by the median home value ($447,000) in the Census ACS 2020–2024 5-year estimates. This is a typical burden for comparison, not a statutory mill rate.
How much is property tax on a typical home in Williamson County?
The median owner-occupied home in Williamson County is valued at $447,000, and the median real estate tax paid is $7,205 per year. Homes with a mortgage have a median tax of $7,632, versus $6,185 for homes without one.
How does Williamson County compare to the rest of Texas?
Williamson County's effective rate is 8% higher than the Texas median, ranking 26th of 250 ranked counties in the state.
Compare nearby Texas counties
Counties ranked closest to Williamson County by in-state effective rate. Open the comparison tool or see all Texas counties.
| In-state | County | Effective rate | Median tax |
|---|---|---|---|
| 23 | Dawson County | 1.62% | $1,677 |
| 24 | Hidalgo County | 1.62% | $2,279 |
| 25 | Denton County | 1.61% | $7,055 |
| 27 | Wilbarger County | 1.60% | $1,432 |
| 28 | Knox County | 1.60% | $1,237 |
| 29 | Nueces County | 1.59% | $3,330 |
Official data & resources for Williamson County
- Williamson County Census profile (data.census.gov) — housing, value and tax figures for this county.
- Table B25103 for Williamson County — median real estate taxes paid (the source for the tax figures above).
- Table B25077 for Williamson County — median home value.
- Federal forms & is property tax deductible? — IRS Pub 530, Schedule A and the SALT cap, plus your state tax agency.
Finding your exact bill
Your county or municipal assessor (sometimes called the appraisal district, property appraiser, or tax collector) sets the assessed value and the exact millage that produces your bill. Search for "[county name] [state] assessor" or "property tax" on an official .gov site.
Figures on this page are Census survey medians for the whole county (2020–2024 5-year), not an assessment of any individual property. Rates, exemptions and assessment practices vary by municipality and school district within a county.