Williamson County, TX property tax rate
Williamson County · Texas · #26 of 250 in the state
Median annual property tax $7,205 · median home value $447,000
$7,205 a year · $600 a month using the area benchmark. Enter a value such as 350,000 or 350,000.00.
A rough planning estimate, not a tax quote.
Above the U.S. benchmark 0.94% (1.72×), above the Texas benchmark 1.49%.
Ranked among 250 Texas counties with available benchmarks; 4 counties are not ranked because required figures are missing or reported as ranges.
What this benchmark means
Median real estate taxes paid ÷ median owner-occupied home value, ACS 2020–2024 — a ratio of two medians, not a statutory rate, not the median of individual bills and not your property's rate. Exemptions people already claim are reflected in the survey; your bill depends on taxable value, local districts, exemptions and reassessment after a sale.
Census figures behind this page
| Median real estate taxes paid | $7,205 |
|---|---|
| With a mortgage / without | $7,632 / $6,185 |
| Median home value | $447,000 |
| Median household income | $111,340 · tax is 6.5% of it |
| Median gross rent | $1,796 / mo |
| Owner-occupied | 66% of 252,323 homes |
| Population | 672,688 |
When it's due in Texas
All states| Full payment | Due Jan 31 Late after Feb 1 under state law — the exact cutoff time, weekend/holiday carry-over and this year's date are on your bill. |
|---|---|
| Late penalty | 6% penalty + 1% interest Feb, +2%/mo to 12% by July (Tex. Tax Code §33.01) |
| Appeal window | protest by May 15 or 30 days after notice |
Split payment option under § 31.03 if adopted by taxing unit: 1/2 by Nov 30, 1/2 by June 30. Regular annual schedule; tax year: calendar 2026, bills mailed Oct. Source: Tex. Tax Code §31.02, rules checked 2026-09-19. Confirm the amount and deadline on your official tax bill.
Texas counties with a similar rate
All 254How this benchmark was computed
Median real estate taxes paid by owner-occupied households in Williamson County ($7,205) divided by the median value of those homes ($447,000), both from the Census Bureau's American Community Survey 2020–2024 5-year estimates. It is a ratio of two medians — a reasonable area benchmark, not the assessor's mill rate and not any one household's rate. Newly purchased homes are often reassessed to sale price, so a buyer's first bill can run above it. Data & method