State legislative office

California State Assembly Member, District 31

This office represents Assembly District 31 in the California Legislature.

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Data coverage

Government: State of California
Public body: California State Assembly
Electoral area: Assembly District 31

State Assembly district

Assembly District 31 boundary from the U.S. Census Bureau TIGERweb current legislative-district layer.

Office overview

The office at a glance

See what this office does, the government it belongs to, the area it represents, and how voters choose its officeholder.

Government levelStateState of California

Contest typePartisanVoter-nominated office

SeatDistrict 31One of 80 State Assembly seats

Regular term2 yearsAssembly seats are elected every two years

What this office does

Represents District 31 in the State Assembly

The office votes on state laws, appropriations, and oversight while representing residents and communities within the district.

California State Assembly Chief Clerk

Election process

A top-two primary leads to the general election

California uses a top-two primary for this office. The two candidates receiving the most votes advance to the general election regardless of party.

Next electionJune 2, 2026

Open the 2026 Election Page

Detailed district statistics2020–2024 ACS 5-year estimates

Survey estimates describe the current Assembly district and are not the same as the official 2020 redistricting population count. Margins of error use the ACS 90% confidence level. Hispanic or Latino includes people of any race; the remaining race categories are non-Hispanic.

People and households

Estimated population: 491,714±5,528
Median age: 31.7 years±0.3 years
Households: 149,584±1,451

Income and education

Median household income: $59,360±$1,670; 2024 inflation-adjusted dollars
People below the poverty line: 23.9%±1.0 percentage points
Bachelor's degree or higher: 15.7%±0.6 percentage points; population age 25+

Housing

Housing units: 158,113±1,387
Occupied housing units: 149,584±1,451
Vacant housing units: 8,529±640
Vacancy rate: 5.4%±0.4 percentage points

Race and ethnicity

Hispanic or Latino (any race): 64.0%±0.5 percentage points
White alone, not Hispanic: 16.1%±0.5 percentage points
Black alone, not Hispanic: 5.1%±0.3 percentage points
American Indian or Alaska Native alone, not Hispanic: 0.4%±0.1 percentage points
Asian alone, not Hispanic: 11.4%±0.5 percentage points
Native Hawaiian or Pacific Islander alone, not Hispanic: 0.2%±0.1 percentage points
Some other race alone, not Hispanic: 0.4%±0.1 percentage points
Two or more races, not Hispanic: 2.4%±0.2 percentage points

U.S. Census Bureau district profile

Current officeholder

Who currently holds this office?

Current officeholder identified by the official California State Assembly directory.

California State Assembly

Current officeholder

Dr. Joaquin Arambula

California State Assembly Member, District 31

Status: Current officeholder
Party: Democrat
Connected election: June 2, 2026

Legislative work

Committee assignments

2025–2026 legislative session

Standing Committees

Aging and Long-Term CareMember
AppropriationsMember
Emergency ManagementMember
RulesMember

Select Committees

Select Committee on Community Economic Mobility and InvestmentChair
Select Committee on Downtown RecoveryMember

Joint Committees

Joint Committee on Fairs Allocation and ClassificationMember
Joint Legislative Committee on Emergency ManagementMember

First Extraordinary · Standing Committees

RulesMember

Official committee list

Contact this office

Phone: (916) 319-2031
Office: 1021 O Street, Suite 6130 Sacramento, CA 95814

Official contact page Official office source

Past officeholders1 verified succession record

Succession history

Explore prior service

Verified Assembly District 31 session snapshots beginning with 2015–2016; one earlier session is included when needed to identify a predecessor.

Select a past officeholder

Reviewed portrait not yet available

Member

Henry Perea

2015–2016 session

First verified session: 2015–2016
Last verified session: 2015–2016
Party during service: Democratic
Capacity: Member

California State Library · Demographics in the California Legislature

Service ranges identify the first and last biennial sessions in the California State Library dataset; they do not assert exact swearing-in or departure dates. District numbers continue across redistricting, so earlier records may describe materially different boundaries.

Electoral area

Where this office represents

See the geographic area represented by this office and open its location information when available.

Interactive area map

Explore places and districts connected to Assembly District 31

Assembly District 31 overlaps 22 mapped communities in Fresno County, including Fresno, Clovis, Sanger, Selma, Reedley, Riverdale, and Kingsburg, plus 15 other mapped communities.

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Places and districts shownLoading related pages

Past elections

Election history

Select a past election

This section covers completed elections. Current and upcoming contests remain on the Election Page linked from the top of this Office Page. A published past Election Page contains the full candidate list, certified result, campaign-finance coverage, methodology, and source documents.

State legislative officeCertified

California State Assembly District 31

June 2, 2026 Statewide Direct Primary Election · 3 candidates

Money in: $0.00
Money out: $0.00

Open Election Page

Election and finance details summarize the connected record. Missing or unpublished filings do not mean zero activity.

Public records

Records connected to this office

Open the official records used to follow the work, decisions, or disclosures connected to this office.

Legislative activity

Authored legislation

Legislative session

Review Assembly bills authored by the officeholder during each legislative session. Coauthored bills, resolutions, and constitutional amendments are not included in this list.

Joaquin Arambula is listed as the author of each assembly bill below. Statuses were reviewed August 17, 2026. Showing all 35 bills.

Open the complete official session search

Official directory

Assemblymember directory record for District 31

Verify the office, current officeholder or vacancy, committee assignments, contact links, and district assignment.

Open official record

News and Press Releases

Updates from this office

Read press releases, official updates, and coverage selected by this office. Follow each link to its source.

California State Assembly

Office of Assemblymember Dr. Joaquin ArambulaJune 16, 2026

Press release

Assemblymember Arambula Comments on the 2026-27 State Budget Adopted by the State Assembly and State Senate on June 15 in Sacramento

SACRAMENTO – Assemblymember Dr. Joaquin Arambula (D-Fresno) today shared these comments about the nearly $356 billion State Budget adopted Monday by the State Assembly and the State Senate:

Official sourceRead official update

California State Assembly

Office of Assemblymember Dr. Joaquin ArambulaJune 1, 2026

Press release

Assemblymember Arambula Lauds HSR Authority Recommendation to Move Forward Fresno and Hanford Sites as Potential Locations for the Central Valley Heavy Maintenance Facility

SACRAMENTO – Assemblymember Dr. Joaquin Arambula today said he’s greatly encouraged by a recommendation today that the California High-Speed Rail Authority move forward with more detailed evaluations for two potential sites for a Central Valley Heavy Maintenance Facility – in Fresno and in Hanford.

Official sourceRead official update

Sources

Sources and data coverage

Review the public records used on this page, what Paper Trail Politics has captured, and what remains incomplete.

Current assessmentComplete coverage

The office identity, electoral area, connected 2026 election, and available official sources are included.

Assessed August 17, 2026 · Current 2026 records

No current limitations were reported by the completion validator.

Sources used on this page9 source organizations · 13 records

California Secretary of State