Cost of living in Williamson County, TN
Part of the Nashville Metro Area
Population 254,609 · Last updated May 21, 2026
Cost breakdown
Single person, by category, per month.
Rent in Williamson County
Fair Market Rents by bedroom count.
Source: HUD FMR FY2025
Income and earnings in Williamson County
Annual earnings figures from the Census ACS.
Source: ACS 2019-2023 5-Year.
Home values in Williamson County
Average values reported by homeowners.
Source: ACS 2019-2023 5-Year
Energy costs in Williamson County
Estimated monthly electricity and gas costs.
Source: EIA
Healthcare in Williamson County
Insurance premiums and coverage rates.
Source: ACS + national avg. Marketplace benchmark premiums are second-lowest Silver plan estimates and do not reflect employer plans, subsidies, or out-of-pocket costs. This is not healthcare advice.
Taxes in Williamson County
State and local tax rates for Tennessee.
Tax rates change. Consult a qualified tax professional for advice on your specific situation. This is not tax advice.
Transportation in Williamson County
Commute patterns and estimated costs.
Source: ACS
Monthly cost estimates for Williamson County
What it costs to live in Williamson County each month.
- Rent $1,650
- Energy $191
- Water $55
- Groceries $317
- Transport $250
- Healthcare $480
- Federal tax $849
- State tax $0
- Rent $1,827
- Energy $229
- Water $65
- Groceries $525
- Transport $350
- Healthcare $864
- Federal tax $1,882
- State tax $0
- Rent $2,308
- Energy $286
- Water $75
- Groceries $797
- Transport $450
- Healthcare $1,350
- Childcare $1,200
- Federal tax $1,882
- State tax $0
Frequently asked questions about Williamson County
Common questions about cost of living, rent and salary.
What is the average rent in Williamson County?
In Williamson County, TN, a one-bedroom apartment averages $1,650 per month, a two-bedroom averages $1,827 per month, a three-bedroom averages $2,308 per month, according to HUD Fair Market Rent data.
What is the average salary in Williamson County?
In Williamson County, TN, the average household income is $131,202 per year and individual earnings for full-time workers average $61,878 per year, according to U.S. Census Bureau data.
What is the cost of living in Williamson County?
The estimated cost of living in Williamson County, TN is approximately $3,792 per month for a single person, $5,742 for a couple, $8,348 for a family. This includes rent, utilities, groceries, transportation, healthcare, and taxes.
What is the sales tax rate in Williamson County?
The combined sales tax rate in Williamson County, TN is 9.55%, which includes the Tennessee state rate of 7.00% plus an average local rate of 2.55%.
Is Williamson County an affordable place to live?
Based on the data, a single person in Williamson County, TN would need approximately $3,792 per month to cover rent, utilities, food, transport, healthcare, and taxes. The average household income is $131,202 per year ($10,934 per month). Williamson County is relatively affordable compared to the national average.
How much does healthcare cost in Williamson County?
The ACA marketplace benchmark premium in Williamson County, TN is approximately $480 per month for an individual. Approximately 4.2% of residents are uninsured. Actual costs vary based on employer coverage, plan type, and individual circumstances.
What are house prices in Williamson County?
The average home value in Williamson County, TN is $673,700, with average annual property taxes of $2,891, according to U.S. Census Bureau data.
How does Williamson County compare to other areas?
You can compare Williamson County, TN with any other US county using our comparison tool at /compare. Williamson County is in the Nashville-Davidson--Murfreesboro--Franklin, TN metro area.
Other counties in Tennessee
Browse the full list of counties in Tennessee, ranked by cost of living.
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About this data
All figures on this page come from official U.S. government sources, listed below.
- HUD FMR FY2025
- ACS 2019-2023 5-Year
- EIA
- ACS + national avg
- ACS
- USDA + BEA RPP