San Mateo, CA

Very High · 315

California · Population 103,555 · Updated March 2026

$3,079
Median Rent / Month
$152,669
Median Income
$1,563,200
Median Home Value
$3,137
Owner Costs / Month

Affordability

How far your income goes in San Mateo

24.2%
Rent-to-Income Ratio
Affordable
Rent takes less than 25% of median income — considered affordable by HUD standards.

Tax Burden in California

State-level tax rates that affect your costs

13.3%
Income Tax (Top Rate)
7.25%
Sales Tax
0.71%
Property Tax Rate

Estimated Annual Costs

$36,948
Annual Rent
$20,305
State Income Tax
$11,099
Property Tax (est.)

Cost of Living Overview

San Mateo has a significantly higher cost of living than most US cities, driven largely by premium housing costs. With a cost index of 315 (where 100 equals the national median), San Mateo residents can expect to pay median rent of $3,079/month while earning a median household income of $152,669/year.

The median home value in San Mateo, CA is $1,563,200, with typical monthly owner costs around $3,137 including mortgage, insurance, and taxes. The median rent-to-income ratio of 24.2% means housing is relatively affordable here — well below the 30% threshold that HUD considers cost-burdened.

California's top income tax rate of 13.3% is among the highest in the nation, adding to the overall cost burden. Combined with a 7.25% sales tax rate and 0.71% effective property tax rate, the overall tax environment is a factor in the total cost of living in San Mateo.

Frequently Asked Questions

Common questions about living costs in San Mateo

What is the cost of living in San Mateo, CA?
The cost of living index in San Mateo, CA is 315 (US average = 100). Median monthly rent is $3,079, median household income is $152,669/year, and the median home value is $1,563,200.
Is San Mateo, CA affordable?
No, San Mateo is more expensive than the national average with a cost index of 315. The rent-to-income ratio is 24.2%—below the 30%% threshold considered affordable by HUD.
What is the average rent in San Mateo, CA?
The median gross rent in San Mateo, CA is $3,079 per month according to the US Census Bureau ACS 2023 data. Annual rent costs approximately $36,948.
What is the median household income in San Mateo?
The median household income in San Mateo, CA is $152,669 per year. This compares to the national median of approximately $80,000.
What are the taxes like in California?
California has a top income tax rate of 13.3%, a sales tax of 7.25%, and an effective property tax rate of 0.71%.