Home›Property Tax›California›Alameda County
County tax profile · 2026 · Census ACS + IRS data

Property Tax & Income in Alameda County, California

Alameda County has an effective property tax rate of 0.78%. On the median home value of $1,090,100, that's roughly $8,474 per year. Median household income is $129,367.

Effective Property Tax Rate1
0.78%
median tax $8,474 ÷ median home $1,090,100
Median Home Value1
$1,090,100
owner-occupied
Median Household Income1
$129,367
per-capita $65,862
Est. Annual Tax on Median Home1
$8,474
at 0.78% effective rate

What you'll pay, at a glance

Property taxes are the largest local tax most homeowners pay. The effective rate measures the real tax bill as a share of home value — a more useful number than the nominal “mill rate,” because assessment practices vary county to county.

MetricAlameda CountyCalifornia (state context)
Effective property tax rate10.78%0.70%
Median home value1$1,090,100—
State income tax3top rate 13.30%top rate 13.30%
State sales tax39.03% combined9.03% combined

How this is calculated

The effective property tax rate is the median real-estate tax bill divided by the median home value — both for owner-occupied homes, from the U.S. Census Bureau's American Community Survey (ACS 5-year estimates)1. Median income is also from the ACS1. Federal and state income-tax figures use IRS2 and Tax Foundation3 data.

About Alameda County, CA

Buying in Alameda County means weighing a median home value of $1,090,100 against an effective property tax rate of 0.777%. That combination produces a median annual real-estate tax bill of $8,474, and the rate sits above California's statewide median of 0.698%, ranking this county 6th of 58. Nationally, the picture shifts: the U.S. median effective rate is 0.794%, so Alameda County actually falls just below it. Income helps offset the cost — the median household earns $129,367, with per-capita income at $65,862. Whether you're looking in Oakland, Berkeley, or Fremont, the trade-off is clear: steep purchase prices paired with a tax rate that is high for California but not out of line with the country as a whole.

Frequently asked questions

What is the property tax rate in Alameda County, CA?
The effective rate is 0.78% — meaning the median tax bill equals about 0.78% of the median home value.
How much are property taxes on a median home?
On the median home ($1,090,100), the estimated annual bill is about $8,474.
Is Alameda County's rate high or low?
Compare it to the state median of 0.70% and the national average near 1.1%.
How does the effective rate differ from my mill rate?
A mill rate is the nominal levy per $1,000 of assessed value. The effective rate reflects what you actually pay after exemptions and assessments — it's the median tax bill as a share of median home value, so it better predicts your real cost.
Will a reassessment raise my tax bill?
Not necessarily. If your home's assessed value rises, your bill can go up, but only if the mill rate and exemptions stay flat. Contact the Alameda County assessor's office to review your current assessment.
Can I appeal my property tax assessment?
Yes. Most counties allow an appeal when you believe the assessed value exceeds the market value. File with the Alameda County assessor within the local deadline, typically with comparable sales as evidence.
Sources
[1] U.S. Census Bureau — ACS 5-Year (2023) — Median home value (B25077), median real-estate taxes (B25103), median household income (B19013), per-capita income (B19301).
[2] IRS — Statistics of Income — County income, AGI, and real-estate taxes paid.
[3] Tax Foundation — State income, sales, corporate, and estate/inheritance tax rates.