Williamson County Property Taxes
Williamson County, Tennessee
Effective Tax Rate
0.00%
184.5% above state avgMedian Annual Tax
$0
$241/mo escrow
Estimate Your Tax
Annual Tax
$0
Monthly
$0
Eff. Rate
0.43%
At a Glance
Median Home Value
$673,700
State avg ▲ $201,611
Tax w/ Mortgage/yr
$2,899
$242/mo escrow
Tax w/o Mortgage/yr
$2,875
$240/mo
State Tax Rate Rank
#21
of 95 counties (1 = lowest)
Similar tax rates
Data Story
About Property Taxes in Williamson County, Tennessee
Williamson taxes below national median
Despite boasting the state's highest median home value of $673,700, Williamson County's effective tax rate of 0.429% keeps median taxes at $2,891—still below the national median of $2,690. This low rate represents a significant tax advantage for affluent homeowners.
Lowest rate in Tennessee
Williamson County's effective rate of 0.429% is the lowest across all Tennessee counties and well below the state average of 0.511%. Its median tax of $2,891 exceeds the state average of $1,016 only because homes here are substantially more valuable.
Low rate despite premium prices
Williamson County's 0.429% rate edges below White County (0.425%) and ties Warren County's territory, yet homes here average $673,700—far exceeding regional neighbors. Williamson offers one of Tennessee's most favorable tax rates on high-value properties.
A $673,700 home costs $2,891
The typical Williamson County homeowner with a median-valued property of $673,700 pays approximately $2,891 in annual property taxes. Though this sounds high in absolute terms, it's just barely above the national median tax despite owning a home nearly 2.4 times the national average value.
High-value homes need review too
Even luxury properties in Williamson County can be overassessed, especially during market downturns or if recent appraisals were inflated. Schedule a reassessment review with the county assessor—it costs nothing and could save thousands annually on premium properties.
How Williamson County Compares
Median Annual Property Tax
Williamson County
0.43%
Effective rate
Tennessee Avg
0.50%
Effective rate
National Avg
0.91%
Effective rate
Frequently Asked Questions
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Counties with Similar Tax Rates
Nearby Counties
Other Counties in Tennessee
Data updated: March 2026
Data from U.S. Census Bureau, American Community Survey 2019-2023 5-Year Estimates. Effective tax rate is calculated as median property tax divided by median home value.