Contra Costa County, CA vs Siskiyou County, CA: Cost of Living Difference

Is it cheaper?

Siskiyou County, CA is cheaper than Contra Costa County, CA.

Moving to Siskiyou County, CA is estimated to save $22,754 per year.

Cheaper cost of living

Cheaper County

Siskiyou County, CASave about $22,754 per year.

Salary needed

$50,000 in Contra Costa County, CA is about $34,995 in Siskiyou County, CA.

Biggest drivers

Healthcare increases by $1,681 per year. Housing saves $12,182 per year.

Housing: $12,182 lower in Siskiyou County, CA

Taxes: $8,208 lower in Siskiyou County, CA

Childcare: about the same in both counties

Healthcare: $1,681 higher in Siskiyou County, CA

Food: $554 lower in Siskiyou County, CA

Transport: $464 higher in Siskiyou County, CA

Contra Costa County, CASiskiyou County, CA
Equivalent salary in Siskiyou County, CA
$34,995
-30.01% lower
Current salary: $50,000
Household: 1 adult · 0 children
Median Income in Contra Costa County, CA: $146,002
Median Income in Siskiyou County, CA: $71,583
Living Index in Contra Costa County, CA 51.94%
Living Index in Siskiyou County, CA 74.14%

This estimate matches your purchasing power (equivalent salary) when moving from Contra Costa County, CA to Siskiyou County, CA.

* 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 Contra Costa County, CA to Siskiyou County, CA is estimated to save $22,754 per year. A $50,000 salary in Contra Costa County, CA would have similar purchasing power to about $34,995 in Siskiyou County, CA. The largest savings come from housing and taxes.

This is a -30.01% decrease in modeled annual costs. Housing is $12,182 per year lower (-52.35%); Taxes is $8,208 per year lower (-45.31%).

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 Contra Costa County, CA and Siskiyou County, CA, so the page highlights the budget tradeoffs behind the total.

Salary needed

A $50,000 salary in Contra Costa County, CA would need to be about $34,995 in Siskiyou County, CA, or $15,005 less, to match the modeled cost ratio.

Affordability vs median income

Modeled annual costs equal about 51.9% of median family income in Contra Costa County, CA and 74.1% in Siskiyou County, CA. This matters because a cheaper county can still feel tight if typical local incomes are also lower.

Housing

Housing is $12,182 per year lower in Siskiyou County, CA than in Contra Costa County, CA. Housing usually behaves like a fixed monthly commitment, so this matters most for renters or buyers checking whether Siskiyou County, CA changes their baseline budget.

Food

Food is $554 per year lower in Siskiyou County, CA than in Contra Costa County, CA. Food costs affect weekly cash flow, so even a smaller annual gap in Siskiyou County, CA can show up quickly for households that cook most meals at home.

Transportation

Transportation is $464 per year higher in Siskiyou County, CA than in Contra Costa 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 Siskiyou County, CA.

Healthcare

Healthcare is $1,681 per year higher in Siskiyou County, CA than in Contra Costa County, CA. Healthcare differences are useful for planning premiums and out-of-pocket exposure, especially if Siskiyou County, CA changes provider networks or plan options.

Other necessities

Other necessities is $3,954 per year lower in Siskiyou County, CA than in Contra Costa County, CA. Other necessities cover everyday basics, so changes in Siskiyou County, CA help explain the non-housing costs that can quietly add up month after month.

Childcare

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

Taxes

Taxes is $8,208 per year lower in Siskiyou County, CA than in Contra Costa County, CA. Taxes affect take-home pay, so the gap in Siskiyou County, CA 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 Siskiyou County, CA.

Biggest Cost
Largest annual cost increase when moving to Siskiyou County, CA
Annual Increase:

$1,681 per year

HEALTHCARE has the largest annual increase when moving to Siskiyou County, CA.

Biggest Savings
Largest annual savings when moving to Siskiyou County, CA
Annual Savings:

$12,182 per year

HOUSING has the largest annual savings when moving to Siskiyou County, CA.

Breakdown of price percentages per category.

Numbers are average costs per section.

CategoryDifference
Housing-52% lower
Food-11% lower
Transport3% higher
Healthcare24% higher
Other Costs-45% lower
Childcare0% higher
Taxes-45% lower

In Siskiyou County, CA, modeled annual costs are $53,073 compared with $75,827 in Contra Costa County, CA.

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

In this case Siskiyou County, CA is not a metropolitan location, while Contra Costa County, CA is a metropolitan location.

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Cost of living methodology and data sources
Contra Costa County, CA vs Siskiyou County, CA Cost of Living (2026)