Williamson County, TN property tax
Census ACS 2023 5-year estimates · updated 2026-09-20
The median effective property tax rate in Williamson County is 0.43%, below the Tennessee median of 0.55% and below the national median of 0.98%. The median homeowner pays $2,891 a year on a home worth $673,700.
- Effective rate
- 0.43%
- Median annual bill
- $2,891
- Median home value
- $673,700
- Rank in Tennessee
- 76of 95
Estimated annual bill by home value
| Home value | Estimated bill | Per month |
|---|---|---|
| $200,000 | $860 | $72 |
| $300,000 | $1,290 | $108 |
| $400,000 | $1,720 | $143 |
| $500,000 | $2,150 | $179 |
| $750,000 | $3,225 | $269 |
| $1,000,000 | $4,300 | $358 |
Williamson County compared with Tennessee and the US
| Area | Effective rate | Median bill | Median home value |
|---|---|---|---|
| Williamson County | 0.43% | $2,891 | $673,700 |
| Tennessee median | 0.55% | $1,400 | $256,800 |
| United States median | 0.98% | $2,969 | n/a |
Rates and medians: U.S. Census Bureau, ACS 2023 5-year estimates, tables B25103 and B25077. Effective rate is median taxes paid divided by median owner-occupied home value.
Frequently asked questions
What is the property tax rate in Williamson County, TN?
The median effective property tax rate in Williamson County is 0.43% of home value, below the Tennessee median of 0.55% and below the national median of 0.98%. The median homeowner pays $2,891 a year on a median home value of $673,700 (Census ACS 2023 5-year).
How much is property tax on a $400,000 house in Williamson County?
About $1,720 per year at the county's median effective rate of 0.43%, before exemptions. The exact bill depends on the city, school district and special districts that serve the parcel, so treat this as a planning estimate.
How does Williamson County compare with the rest of Tennessee?
Williamson County ranks 76 of 95 Tennessee counties by effective rate. The Tennessee median is 0.55% and the median bill is $1,400.