Salary needed
A $50,000 salary in Williamson County, TN would need to be about $28,430 in Johnson County, TN, or $21,570 less, to match the modeled cost ratio.
Williamson County, TN vs Johnson County, TN: Cost of Living Difference
Is it cheaper?
Johnson County, TN is cheaper than Williamson County, TN.
Moving to Johnson County, TN is estimated to save $31,785 per year.
Cheaper County
Johnson County, TNSave about $31,785 per year.Salary needed
$50,000 in Williamson County, TN is about $28,430 in Johnson County, TN.
Biggest drivers
No measured category is higher in Johnson County, TN. Housing saves $16,256 per year.
Housing: $16,256 lower in Johnson County, TN
Taxes: $8,060 lower in Johnson County, TN
Childcare: about the same in both counties
Healthcare: $582 lower in Johnson County, TN
Food: $957 lower in Johnson County, TN
Transport: $583 lower in Johnson County, TN
Williamson County, TN→Johnson County, TN
Equivalent salary in Johnson County, TN
$28,430
-43.14% lower
Current salary: $50,000
Household: 1 adult · 0 children
Median Income in Williamson County, TN: $153,397
Median Income in Johnson County, TN: $66,747
Living Index in Williamson County, TN 48.03%
Living Index in Johnson County, TN 62.77%
This estimate matches your purchasing power (equivalent salary) when moving from Williamson County, TN to Johnson 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 Johnson County, TN is estimated to save $31,785 per year. A $50,000 salary in Williamson County, TN would have similar purchasing power to about $28,430 in Johnson County, TN. The largest savings come from housing and taxes.
This is a -43.14% decrease in modeled annual costs. Housing is $16,256 per year lower (-65.33%); Taxes is $8,060 per year lower (-55.95%).
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 Johnson 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 62.8% in Johnson County, TN. This matters because a cheaper county can still feel tight if typical local incomes are also lower.
Housing
Housing is $16,256 per year lower in Johnson 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 Johnson County, TN changes their baseline budget.
Food
Food is $957 per year lower in Johnson County, TN than in Williamson County, TN. Food costs affect weekly cash flow, so even a smaller annual gap in Johnson County, TN can show up quickly for households that cook most meals at home.
Transportation
Transportation is $583 per year lower in Johnson 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 Johnson County, TN.
Healthcare
Healthcare is $582 per year lower in Johnson County, TN than in Williamson County, TN. Healthcare differences are useful for planning premiums and out-of-pocket exposure, especially if Johnson County, TN changes provider networks or plan options.
Other necessities
Other necessities is $5,345 per year lower in Johnson County, TN than in Williamson County, TN. Other necessities cover everyday basics, so changes in Johnson 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 Johnson County, TN, so this category is not a major driver of the modeled gap. Childcare is most important for households with children; in Johnson County, TN, this line can swing the result even when housing or taxes look manageable.
Taxes
Taxes is $8,060 per year lower in Johnson County, TN than in Williamson County, TN. Taxes affect take-home pay, so the gap in Johnson 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 Johnson County, TN.
Biggest Cost
Largest annual cost increase when moving to Johnson County, TN
Annual Increase:
No increase
No measured category is higher in Johnson County, TN.
Biggest Savings
Largest annual savings when moving to Johnson County, TN
Annual Savings:
$16,256 per year
HOUSING has the largest annual savings when moving to Johnson County, TN.
Breakdown of price percentages per category.
Numbers are average costs per section.
| Category | Difference | |
|---|---|---|
| Housing | -65% lower | |
| Food | -19% lower | |
| Transport | -4% lower | |
| Healthcare | -9% lower | |
| Other Costs | -57% lower | |
| Childcare | 0% higher | |
| Taxes | -56% lower |
In Johnson County, TN, modeled annual costs are $41,894 compared with $73,679 in Williamson County, TN.
Overall, annual costs are lower in Johnson County, TN. The category breakdown above shows where the move creates the most room in the budget.
In this case Johnson County, TN is not a metropolitan location, while Williamson County, TN is a metropolitan location.
Use our map to visually compare multiple counties at once.
