San Mateo County, CA vs Colusa County, CA: Cost of Living Difference

Is it cheaper?

Colusa County, CA is cheaper than San Mateo County, CA.

Moving to Colusa County, CA is estimated to save $39,385 per year.

Cheaper cost of living

Cheaper County

Colusa County, CASave about $39,385 per year.

Salary needed

$50,000 in San Mateo County, CA is about $28,985 in Colusa County, CA.

Biggest drivers

Healthcare increases by $1,066 per year. Housing saves $19,401 per year.

Housing: $19,401 lower in Colusa County, CA

Taxes: $14,822 lower in Colusa County, CA

Childcare: about the same in both counties

Healthcare: $1,066 higher in Colusa County, CA

Food: $819 lower in Colusa County, CA

Transport: $869 higher in Colusa County, CA

San Mateo County, CAColusa County, CA
Equivalent salary in Colusa County, CA
$28,985
-42.03% lower
Current salary: $50,000
Household: 1 adult · 0 children
Median Income in San Mateo County, CA: $184,583
Median Income in Colusa County, CA: $89,214
Living Index in San Mateo County, CA 50.77%
Living Index in Colusa County, CA 60.90%

This estimate matches your purchasing power (equivalent salary) when moving from San Mateo County, CA to Colusa 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 San Mateo County, CA to Colusa County, CA is estimated to save $39,385 per year. A $50,000 salary in San Mateo County, CA would have similar purchasing power to about $28,985 in Colusa County, CA. The largest savings come from housing and taxes.

This is a -42.03% decrease in modeled annual costs. Housing is $19,401 per year lower (-63.86%); Taxes is $14,822 per year lower (-59.16%).

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 Mateo County, CA and Colusa County, CA, so the page highlights the budget tradeoffs behind the total.

Salary needed

A $50,000 salary in San Mateo County, CA would need to be about $28,985 in Colusa County, CA, or $21,015 less, to match the modeled cost ratio.

Affordability vs median income

Modeled annual costs equal about 50.8% of median family income in San Mateo County, CA and 60.9% in Colusa County, CA. This matters because a cheaper county can still feel tight if typical local incomes are also lower.

Housing

Housing is $19,401 per year lower in Colusa County, CA than in San Mateo County, CA. Housing usually behaves like a fixed monthly commitment, so this matters most for renters or buyers checking whether Colusa County, CA changes their baseline budget.

Food

Food is $819 per year lower in Colusa County, CA than in San Mateo County, CA. Food costs affect weekly cash flow, so even a smaller annual gap in Colusa County, CA can show up quickly for households that cook most meals at home.

Transportation

Transportation is $869 per year higher in Colusa County, CA than in San Mateo 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 Colusa County, CA.

Healthcare

Healthcare is $1,066 per year higher in Colusa County, CA than in San Mateo County, CA. Healthcare differences are useful for planning premiums and out-of-pocket exposure, especially if Colusa County, CA changes provider networks or plan options.

Other necessities

Other necessities is $6,278 per year lower in Colusa County, CA than in San Mateo County, CA. Other necessities cover everyday basics, so changes in Colusa County, CA help explain the non-housing costs that can quietly add up month after month.

Childcare

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

Taxes

Taxes is $14,822 per year lower in Colusa County, CA than in San Mateo County, CA. Taxes affect take-home pay, so the gap in Colusa 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 Colusa County, CA.

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

$1,066 per year

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

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

$19,401 per year

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

Breakdown of price percentages per category.

Numbers are average costs per section.

CategoryDifference
Housing-64% lower
Food-15% lower
Transport6% higher
Healthcare14% higher
Other Costs-57% lower
Childcare0% higher
Taxes-59% lower

In Colusa County, CA, modeled annual costs are $54,333 compared with $93,718 in San Mateo County, CA.

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

In this case Colusa County, CA is not a metropolitan location, while San Mateo County, CA is a metropolitan location.

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Cost of living methodology and data sources
San Mateo County, CA vs Colusa County, CA Cost of Living (2026)