Texas · FIPS 48491 · ACS 2020–2024
Williamson County, Texas property tax rate
Homeowners in Williamson County paid a median of $7,205 a year in real estate taxes on a median home value of $447,000 (2020–2024 survey). Taxes came to 1.50% of home value, 7% above the Texas rate of 1.40% and 60% above the U.S. rate of 0.94%.
- 1.50%Effective tax rate±0.03% margin · Texas: 1.40%
- $7,205Median tax per yearTexas: $4,232 · U.S.: $3,119
- $447,000Median home valueTexas: $283,800
- 167,540Owner-occupied homes66% of households own
| Measure | Williamson County | Texas | U.S. | Williamson County 2019–2023 | Change |
|---|---|---|---|---|---|
| Effective tax rate | 1.50% | 1.40% | 0.94% | 1.59% | −0.09 pts |
| Median tax, all owners | $7,205 | $4,232 | $3,119 | $7,079 | +$126 (+1.8%) |
| Median tax, with a mortgage | $7,632 | $5,327 | $3,489 | $7,477 | +$155 (+2.1%) |
| Median tax, no mortgage | $6,185 | $2,847 | $2,576 | $6,101 | +$84 (+1.4%) |
| Median home value | $447,000 | $283,800 | $332,700 | $414,600 | +$32,400 (+7.8%) |
| Total taxes paid | $1,262,332,600 | $35,304,639,700 | $360,573,527,500 | $1,195,856,000 |
How Williamson County compares
- Per $1,000 of home value, owners here paid about $15.04 a year, against $14.02 statewide and $9.40 nationally.
- Rank in Texas: 161 of 173 counties from lowest to highest effective rate (among those with reliable estimates). Nationally, 93% of 2,682 counties had a lower rate.
- Homes with a mortgage: 1.60% of value; homes without one: 1.29%. Median bills: $7,632 and $6,185.
- Compared with the 2019–2023 survey, the effective rate fell (−0.09 pts) and the median tax changed +$126 (+1.8%). The two 5-year surveys share four years of responses, so year-to-year moves are small and partly noise.
- Margin of error: the effective rate is 1.50% ± 0.03% at 90% confidence, from a sample of the 167,540 owner-occupied homes.
Texas counties with similar rates
| County | Effective rate | Median tax | Median value |
|---|---|---|---|
| Collin County | 1.48% | $7,521 | $475,600 |
| Wilbarger County | 1.48% | $1,432 | $89,400 |
| Kaufman County | 1.49% | $5,377 | $320,900 |
| Lubbock County | 1.50% | $3,241 | $214,100 |
| Gaines County | 1.50% | $3,142 | $200,700 |
| Jefferson County | 1.50% | $2,600 | $169,500 |
| Harris County | 1.50% | $4,489 | $276,600 |
| Tarrant County | 1.54% | $5,334 | $323,900 |
Sources
- U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, table-based summary file: B25090 (aggregate real estate taxes), B25082 (aggregate home value), B25103 (median real estate taxes), B25077 (median home value) and B25003 (tenure); files dated January 29, 2026.
- U.S. Census Bureau, American Community Survey 2019–2023 5-year estimates, same tables (files dated October 31, 2024), for the comparison column.
- Geography names: Census Bureau Geos20245YR.txt (file dated January 22, 2026).
Effective rate = total real estate taxes paid by owner-occupied homes ÷ their total value, as reported by owners to the Census Bureau. It is not a millage rate. Your bill depends on your assessed value, exemptions (such as homestead) and local levies.