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Alameda County

Alameda County is a county in California. It pays for health and human services, jails, courts and police. In 2022, Alameda County spent about $4,920.9M. This is a Census of Governments estimate across all of its funds.

Collected and spent

In 2022, Alameda County spent about $4,920.9M. This is a Census of Governments estimate across all of its funds.

Spent
$4,920.9M
Fiscal year 2022 · Census of Governments estimate, all funds · spending

Where the money comes from

Two taxes.

Property tax, the 1% base
$1 per $100 of value
the home's full cash value as Proposition 13 sets it: the price paid, rising at most 2% a year · Set by the California Constitution (Proposition 13); the county collects it and shares it with the cities, schools and districts by a state formula
Property tax, voter-approved additions
$0.0089 per $100 of value
the same value, on top of the 1% base
Source · California Legislative Information, Prop 13. Read on October 15, 2026.
DetailsProp 13 (CA Const. Art. XIII A §1)
Source · Alameda County Auditor-Controller, Tax Analysis Division, Alameda County 2024 voter-approved overlay. Read on October 16, 2026.
DetailsAlameda County 2024 voter-approved overlay — the county's own line 1006 COUNTY GO BOND .0089% of assessed value = 0.089 mills (the county identifies it as the Measure A1 affordable housing bond; the Tax Rate Book itself names only 'County GO Bond'), per the Alameda County 2024-25 Tax Rate Book, Oakland TRA 17-001 (page 148) and Berkeley TRA 13-000 (page 95); the 7165 BART .0148 and 7180 East Bay Regional Park District .0013 lines print under Miscellaneous districts and sit on those districts' own lines since 2026-10-15 (operator ruling) — 1% Prop 13 base rendered as a separate statutory line

Where it goes

Twelve service lines.

Health and human services
$3,147.8M
Corrections
$416.2M
Other
$325.6M
Courts
$219.5M
General government
$190.4M
Police
$153.4M
Fire
$151.1M
Public works
$143.9M
Show all 12 linesShow fewer lines
Debt service · past obligation
$82.4M
Schools
$51.9M
Library
$37.8M
Parks and recreation
$0.9M

Bars in both tables share one scale. Hatched lines pay for past obligations, not current services.

Source · 2022 Census of Governments - Estimated service split source. Read on October 20, 2026.

Who decides

The board runs the county. It adopts the budget each year. It also sets the property tax rates. 5 Supervisors, one for each of 5 districts.

David Haubert
Supervisor, District 1
Term end not published
Re-check by November 3, 2026
Elisa Márquez
Supervisor, District 2
Term end not published
Re-check by November 3, 2026
Lena Tam
Supervisor, District 3
Term end not published
Re-check by November 3, 2026
Nate Miley
Supervisor, District 4
Term end not published
Re-check by November 3, 2026
Nikki Fortunato Bas
Supervisor, District 5
Term end not published
Re-check by November 3, 2026
Source · California Legislature, Cal. Gov. Code §29088. Read on October 10, 2026.
DetailsCal. Gov. Code §29088 (budget adoption) and §29100(a) (tax rates) (read 2026-10-10)

When decisions happen

The board adopts the final budget by October 2 each year. It sets property tax rates by October 3.

Each yearThe county budget year runs July 1 to June 30.
Next electionThe next general election is November 3, 2026.
Supervisors serve 4-year terms.

How to reach it

Clerk, Board of Supervisors: (510) 208-4949
Phone
1221 Oak Street, Suite 536, Oakland, CA 94612
Mailing address
Source · California Legislature, Cal. Gov. Code §29001(e), Budget year. Read on October 10, 2026.
DetailsCal. Gov. Code §29001(e), Budget year (with §29088 and §29100(a)) (read 2026-10-10)

Also on this tax bill

An Alameda County address pays these governments too. Which school districts and cities apply depends on the address.

On every bill in Alameda County

CaliforniaStateEast Bay Regional Park DistrictSpecial districtSan Francisco Bay Area Rapid Transit District (BART)Special districtSan Francisco Bay Restoration Authority (Measure AA)Special district

On some bills, depending on the address

School districts: 17

Livermore Valley Joint Unified School DistrictNot in Who Taxes Me yet
Fremont Unified School DistrictSchool district
Sunol Glen Unified School DistrictNot in Who Taxes Me yet
Castro Valley Unified School DistrictNot in Who Taxes Me yet
Oakland Unified School DistrictSchool districtHayward Unified School DistrictSchool district
Pleasanton Unified School DistrictNot in Who Taxes Me yet
New Haven Unified School DistrictNot in Who Taxes Me yet
San Leandro Unified School DistrictNot in Who Taxes Me yet
Lammersville Joint Unified School District (9-12)Not in Who Taxes Me yet
Mountain House Elementary School DistrictNot in Who Taxes Me yet
Alameda City Unified School DistrictNot in Who Taxes Me yet
Berkeley Unified School DistrictSchool district
Dublin Unified School DistrictNot in Who Taxes Me yet
San Lorenzo Unified School DistrictNot in Who Taxes Me yet
Newark Unified School DistrictNot in Who Taxes Me yet
Albany City Unified School DistrictNot in Who Taxes Me yet

Cities: 14

FremontCityOaklandCityHaywardCity
SunolNot in Who Taxes Me yet
LivermoreNot in Who Taxes Me yet
PleasantonNot in Who Taxes Me yet
AlamedaNot in Who Taxes Me yet
Union CityNot in Who Taxes Me yet
BerkeleyCity
Castro ValleyNot in Who Taxes Me yet
San LeandroNot in Who Taxes Me yet
DublinNot in Who Taxes Me yet
NewarkNot in Who Taxes Me yet
AlbanyNot in Who Taxes Me yet

Sources

Spent
Taxes
California Legislative Information, Prop 13. Read on October 15, 2026.
DetailsProp 13 (CA Const. Art. XIII A §1)
Taxes
Alameda County Auditor-Controller, Tax Analysis Division, Alameda County 2024 voter-approved overlay. Read on October 16, 2026.
DetailsAlameda County 2024 voter-approved overlay — the county's own line 1006 COUNTY GO BOND .0089% of assessed value = 0.089 mills (the county identifies it as the Measure A1 affordable housing bond; the Tax Rate Book itself names only 'County GO Bond'), per the Alameda County 2024-25 Tax Rate Book, Oakland TRA 17-001 (page 148) and Berkeley TRA 13-000 (page 95); the 7165 BART .0148 and 7180 East Bay Regional Park District .0013 lines print under Miscellaneous districts and sit on those districts' own lines since 2026-10-15 (operator ruling) — 1% Prop 13 base rendered as a separate statutory line
Who decides
California Legislature, Cal. Gov. Code §29088. Read on October 10, 2026.
DetailsCal. Gov. Code §29088 (budget adoption) and §29100(a) (tax rates) (read 2026-10-10)
When decisions happen
California Legislature, Cal. Gov. Code §29001(e), Budget year. Read on October 10, 2026.
DetailsCal. Gov. Code §29001(e), Budget year (with §29088 and §29100(a)) (read 2026-10-10)
How to reach it
County of Alameda, Alameda County Board of Supervisors, About page. Read on October 10, 2026.
DetailsAlameda County Board of Supervisors, About page (read 2026-10-10)
What it does

To act on what you have read

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