San Joaquin County.
A Place To Thrive.
San Joaquin County Government is an inventive partner who works on behalf of…
Economic Development
San Joaquin County Government is an inventive partner who works on behalf of business, non-profits, and prospective investors seeking growth, to find answers, connect people and quickly facilitate transactions with the objective of advancing enterprise in throughout the County.
Strategic Priorities
San Joaquin County measures our success by the prosperity of our communities. We keep our focus firmly on ensuring that our County’s priorities – fiscal responsibility, good governance, public safety, economic growth, and managing and preserving our water resources – guide our investments, actions, innovation and service.
Emergency Preparation
SJReady is a community notification system to alert residents about emergency events and other important public safety information. This system allows San Joaquin County to provide you with critical information quickly in a variety of situations such as severe weather, unexpected road closures, and evacuations of neighborhoods and buildings.
Mario Gardea
Supervisor — District 1
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Paul Canepa
Supervisor — District 2
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Sonny Dhaliwal
Supervisor — District 3
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Steven J. Ding
Supervisor — District 4
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Robert Rickman
Supervisor — District 5
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County News
April 30, 2026
San Joaquin County Begins Mailing Ballots for June 2, 2026 Statewide Primary Election

The San Joaquin County Registrar of Voters (ROV) has officially began mailing Vote by Mail (VBM) ballots to all registered voters for the June 2, 2026 Statewide Primary Election, marking the start of the County’s voting period.

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  • April 28, 2026
    San Joaquin County Board of Supervisors Proclaims Local Emergency Over Invasive Golden Mussel Threat
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  • April 24, 2026
    San Joaquin County Opens New Medical Examiner Facility
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  • April 16, 2026
    San Joaquin County Health Care Services Director Invited to National Summit on Addiction and Homelessness
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Our
History
Established in 1850, San Joaquin County is composed of 25 departments and agencies that provide a full range of services to more than 779,000 residents. Encompassing an area of 1,426 square miles, including 35 square miles of water and waterways, with seven cities — Escalon, Lathrop, Lodi, Manteca, Ripon, Stockton, and Tracy — San Joaquin County has a long history of providing responsive public service and innovative programs while operating under sound fiscal principles. Working together, an elected Board of Supervisors and County staff strive to represent, and support and protect the individuals, families, businesses, and natural resources that make our County a great place to live, work and play.