San Francisco County, CA vs King County, WA: Cost of Living Difference

Is it cheaper?

King County, WA is cheaper than San Francisco County, CA.

Moving to King County, WA is estimated to save $774 per year.

Cheaper cost of living

Cheaper County

King County, WASave about $774 per year.

Salary needed

$50,000 in San Francisco County, CA is about $49,480 in King County, WA.

Biggest drivers

Transport increases by $2,989 per year. Taxes saves $3,151 per year.

Housing: $1,958 higher in King County, WA

Taxes: $3,151 lower in King County, WA

Childcare: about the same in both counties

Healthcare: $2,438 lower in King County, WA

Food: $566 lower in King County, WA

Transport: $2,989 higher in King County, WA

San Francisco County, CAKing County, WA
Equivalent salary in King County, WA
$49,480
-1.04% lower
Current salary: $50,000
Household: 1 adult · 0 children
Median Income in San Francisco County, CA: $165,603
Median Income in King County, WA: $154,490
Living Index in San Francisco County, CA 44.82%
Living Index in King County, WA 47.55%

This estimate matches your purchasing power (equivalent salary) when moving from San Francisco County, CA to King County, WA.

* 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 San Francisco County, CA to King County, WA is estimated to save $774 per year. A $50,000 salary in San Francisco County, CA would have similar purchasing power to about $49,480 in King County, WA. The largest savings come from taxes and healthcare.

This is a -1.04% decrease in modeled annual costs. Taxes is $3,151 per year lower (-18.01%); Healthcare is $2,438 per year lower (-33.68%).

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 San Francisco County, CA and King County, WA, so the page highlights the budget tradeoffs behind the total.

Salary needed

A $50,000 salary in San Francisco County, CA would need to be about $49,480 in King County, WA, or $520 less, to match the modeled cost ratio.

Affordability vs median income

Modeled annual costs equal about 44.8% of median family income in San Francisco County, CA and 47.5% in King County, WA. This matters because a cheaper county can still feel tight if typical local incomes are also lower.

Housing

Housing is $1,958 per year higher in King County, WA than in San Francisco County, CA. Housing usually behaves like a fixed monthly commitment, so this matters most for renters or buyers checking whether King County, WA changes their baseline budget.

Food

Food is $566 per year lower in King County, WA than in San Francisco County, CA. Food costs affect weekly cash flow, so even a smaller annual gap in King County, WA can show up quickly for households that cook most meals at home.

Transportation

Transportation is $2,989 per year higher in King County, WA than in San Francisco County, CA. Transportation matters for commuters because driving distance, vehicle costs, and transit access can change how much of a salary is left after getting around King County, WA.

Healthcare

Healthcare is $2,438 per year lower in King County, WA than in San Francisco County, CA. Healthcare differences are useful for planning premiums and out-of-pocket exposure, especially if King County, WA changes provider networks or plan options.

Other necessities

Other necessities is $433 per year higher in King County, WA than in San Francisco County, CA. Other necessities cover everyday basics, so changes in King County, WA help explain the non-housing costs that can quietly add up month after month.

Childcare

Childcare is about the same in San Francisco County, CA and King County, WA, so this category is not a major driver of the modeled gap. Childcare is most important for households with children; in King County, WA, this line can swing the result even when housing or taxes look manageable.

Taxes

Taxes is $3,151 per year lower in King County, WA than in San Francisco County, CA. Taxes affect take-home pay, so the gap in King County, WA 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 King County, WA.

Biggest Cost
Largest annual cost increase when moving to King County, WA
Annual Increase:

$2,989 per year

TRANSPORT has the largest annual increase when moving to King County, WA.

Biggest Savings
Largest annual savings when moving to King County, WA
Annual Savings:

$3,151 per year

TAXES has the largest annual savings when moving to King County, WA.

Breakdown of price percentages per category.

Numbers are average costs per section.

CategoryDifference
Housing8% higher
Food-10% lower
Transport34% higher
Healthcare-34% lower
Other Costs4% higher
Childcare0% higher
Taxes-18% lower

In King County, WA, modeled annual costs are $73,455 compared with $74,229 in San Francisco County, CA.

Overall, annual costs are lower in King County, WA. The category breakdown above shows where the move creates the most room in the budget.

In this case King County, WA and San Francisco County, CA are both metropolitan locations.

Use our map to visually compare multiple counties at once.

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City housing context

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Cost of living methodology and data sources
San Francisco County, CA vs King County, WA Cost of Living (2026)