Salary needed
A $50,000 salary in Fairfax County, VA would need to be about $28,120 in Washington County, VA, or $21,880 less, to match the modeled cost ratio.
Fairfax County, VA vs Washington County, VA: Cost of Living Difference
Is it cheaper?
Washington County, VA is cheaper than Fairfax County, VA.
Moving to Washington County, VA is estimated to save $34,473 per year.
Cheaper County
Washington County, VASave about $34,473 per year.Salary needed
$50,000 in Fairfax County, VA is about $28,120 in Washington County, VA.
Biggest drivers
Transport increases by $1,171 per year. Housing saves $17,925 per year.
Housing: $17,925 lower in Washington County, VA
Taxes: $11,051 lower in Washington County, VA
Childcare: about the same in both counties
Healthcare: $363 higher in Washington County, VA
Food: $1,119 lower in Washington County, VA
Transport: $1,171 higher in Washington County, VA
Fairfax County, VA→Washington County, VA
Equivalent salary in Washington County, VA
$28,120
-43.76% lower
Current salary: $50,000
Household: 1 adult · 0 children
Median Income in Fairfax County, VA: $178,683
Median Income in Washington County, VA: $81,978
Living Index in Fairfax County, VA 44.09%
Living Index in Washington County, VA 54.05%
This estimate matches your purchasing power (equivalent salary) when moving from Fairfax County, VA to Washington County, VA.
* 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 Fairfax County, VA to Washington County, VA is estimated to save $34,473 per year. A $50,000 salary in Fairfax County, VA would have similar purchasing power to about $28,120 in Washington County, VA. The largest savings come from housing and taxes.
This is a -43.76% decrease in modeled annual costs. Housing is $17,925 per year lower (-66.42%); Taxes is $11,051 per year lower (-55.79%).
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 Fairfax County, VA and Washington County, VA, so the page highlights the budget tradeoffs behind the total.
Affordability vs median income
Modeled annual costs equal about 44.1% of median family income in Fairfax County, VA and 54.1% in Washington County, VA. This matters because a cheaper county can still feel tight if typical local incomes are also lower.
Housing
Housing is $17,925 per year lower in Washington County, VA than in Fairfax County, VA. Housing usually behaves like a fixed monthly commitment, so this matters most for renters or buyers checking whether Washington County, VA changes their baseline budget.
Food
Food is $1,119 per year lower in Washington County, VA than in Fairfax County, VA. Food costs affect weekly cash flow, so even a smaller annual gap in Washington County, VA can show up quickly for households that cook most meals at home.
Transportation
Transportation is $1,171 per year higher in Washington County, VA than in Fairfax County, VA. Transportation matters for commuters because driving distance, vehicle costs, and transit access can change how much of a salary is left after getting around Washington County, VA.
Healthcare
Healthcare is $363 per year higher in Washington County, VA than in Fairfax County, VA. Healthcare differences are useful for planning premiums and out-of-pocket exposure, especially if Washington County, VA changes provider networks or plan options.
Other necessities
Other necessities is $5,913 per year lower in Washington County, VA than in Fairfax County, VA. Other necessities cover everyday basics, so changes in Washington County, VA help explain the non-housing costs that can quietly add up month after month.
Childcare
Childcare is about the same in Fairfax County, VA and Washington County, VA, so this category is not a major driver of the modeled gap. Childcare is most important for households with children; in Washington County, VA, this line can swing the result even when housing or taxes look manageable.
Taxes
Taxes is $11,051 per year lower in Washington County, VA than in Fairfax County, VA. Taxes affect take-home pay, so the gap in Washington County, VA 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 Washington County, VA.
Biggest Cost
Largest annual cost increase when moving to Washington County, VA
Annual Increase:
$1,171 per year
TRANSPORT has the largest annual increase when moving to Washington County, VA.
Biggest Savings
Largest annual savings when moving to Washington County, VA
Annual Savings:
$17,925 per year
HOUSING has the largest annual savings when moving to Washington County, VA.
Breakdown of price percentages per category.
Numbers are average costs per section.
| Category | Difference | |
|---|---|---|
| Housing | -66% lower | |
| Food | -22% lower | |
| Transport | 9% higher | |
| Healthcare | 8% higher | |
| Other Costs | -59% lower | |
| Childcare | 0% higher | |
| Taxes | -56% lower |
In Washington County, VA, modeled annual costs are $44,313 compared with $78,786 in Fairfax County, VA.
Overall, annual costs are lower in Washington County, VA. The category breakdown above shows where the move creates the most room in the budget.
In this case Washington County, VA and Fairfax County, VA are both metropolitan locations.
Use our map to visually compare multiple counties at once.
