Salary needed
A $50,000 salary in Williamson County, TN would need to be about $27,460 in Polk County, TN, or $22,540 less, to match the modeled cost ratio.
Williamson County, TN vs Polk County, TN: Cost of Living Difference
Is it cheaper?
Polk County, TN is cheaper than Williamson County, TN.
Moving to Polk County, TN is estimated to save $33,216 per year.
Cheaper County
Polk County, TNSave about $33,216 per year.Salary needed
$50,000 in Williamson County, TN is about $27,460 in Polk County, TN.
Biggest drivers
No measured category is higher in Polk County, TN. Housing saves $17,802 per year.
Housing: $17,802 lower in Polk County, TN
Taxes: $8,342 lower in Polk County, TN
Childcare: about the same in both counties
Healthcare: $435 lower in Polk County, TN
Food: $750 lower in Polk County, TN
Transport: $126 lower in Polk County, TN
Williamson County, TN→Polk County, TN
Equivalent salary in Polk County, TN
$27,460
-45.08% lower
Current salary: $50,000
Household: 1 adult · 0 children
Median Income in Williamson County, TN: $153,397
Median Income in Polk County, TN: $77,435
Living Index in Williamson County, TN 48.03%
Living Index in Polk County, TN 52.25%
This estimate matches your purchasing power (equivalent salary) when moving from Williamson County, TN to Polk County, TN.
* Living index is estimated as (estimated total cost / area median income) * 100. A living index above 100% means modeled costs exceed median income.
Cost of Living Breakdown by Category
Summary
Moving from Williamson County, TN to Polk County, TN is estimated to save $33,216 per year. A $50,000 salary in Williamson County, TN would have similar purchasing power to about $27,460 in Polk County, TN. The largest savings come from housing and taxes.
This is a -45.08% decrease in modeled annual costs. Housing is $17,802 per year lower (-71.54%); Taxes is $8,342 per year lower (-57.9%).
Below we break down the annual categories behind the difference using Economic Policy Institute 2026 Family Budget data.
Why this comparison matters
These notes use the actual annual cost differences between Williamson County, TN and Polk County, TN, so the page highlights the budget tradeoffs behind the total.
Affordability vs median income
Modeled annual costs equal about 48.0% of median family income in Williamson County, TN and 52.3% in Polk County, TN. This matters because a cheaper county can still feel tight if typical local incomes are also lower.
Housing
Housing is $17,802 per year lower in Polk County, TN than in Williamson County, TN. Housing usually behaves like a fixed monthly commitment, so this matters most for renters or buyers checking whether Polk County, TN changes their baseline budget.
Food
Food is $750 per year lower in Polk County, TN than in Williamson County, TN. Food costs affect weekly cash flow, so even a smaller annual gap in Polk County, TN can show up quickly for households that cook most meals at home.
Transportation
Transportation is $126 per year lower in Polk County, TN than in Williamson County, TN. Transportation matters for commuters because driving distance, vehicle costs, and transit access can change how much of a salary is left after getting around Polk County, TN.
Healthcare
Healthcare is $435 per year lower in Polk County, TN than in Williamson County, TN. Healthcare differences are useful for planning premiums and out-of-pocket exposure, especially if Polk County, TN changes provider networks or plan options.
Other necessities
Other necessities is $5,760 per year lower in Polk County, TN than in Williamson County, TN. Other necessities cover everyday basics, so changes in Polk County, TN help explain the non-housing costs that can quietly add up month after month.
Childcare
Childcare is about the same in Williamson County, TN and Polk County, TN, so this category is not a major driver of the modeled gap. Childcare is most important for households with children; in Polk County, TN, this line can swing the result even when housing or taxes look manageable.
Taxes
Taxes is $8,342 per year lower in Polk County, TN than in Williamson County, TN. Taxes affect take-home pay, so the gap in Polk County, TN matters even if the headline salary looks similar before deductions.
What changed the most?
The following cards show the annual category differences that most affect the move to Polk County, TN.
Biggest Cost
Largest annual cost increase when moving to Polk County, TN
Annual Increase:
No increase
No measured category is higher in Polk County, TN.
Biggest Savings
Largest annual savings when moving to Polk County, TN
Annual Savings:
$17,802 per year
HOUSING has the largest annual savings when moving to Polk County, TN.
Breakdown of price percentages per category.
Numbers are average costs per section.
| Category | Difference | |
|---|---|---|
| Housing | -72% lower | |
| Food | -15% lower | |
| Transport | -1% lower | |
| Healthcare | -7% lower | |
| Other Costs | -62% lower | |
| Childcare | 0% higher | |
| Taxes | -58% lower |
In Polk County, TN, modeled annual costs are $40,463 compared with $73,679 in Williamson County, TN.
Overall, annual costs are lower in Polk County, TN. The category breakdown above shows where the move creates the most room in the budget.
In this case Polk County, TN and Williamson County, TN are both metropolitan locations.
Use our map to visually compare multiple counties at once.
