Probation Department

David Koch
David Koch
Chief Probation Officer

Welcome to the Sonoma County Probation Department. We believe this to be one of the finest Probation Departments in the state of California. Probation is an integral part of the criminal justice system. The 300 men and women of the Sonoma County Probation Department are proud of their contributions supporting the Court, assisting delinquent youth and adult offenders in making positive changes to their behavior, helping victims, and delivering effective prevention and intervention services that make for safer and healthier communities.

We appreciate your interest - browse these pages to learn more about who we are, and what we do.

Building Partnerships for a Safe Community


Successful Probation work requires collaborative relationships and multi-system strategies with a variety of partners. In serving as the neutral arm of Court, the Probation Department works with defense attorneys and prosecutors to complete comprehensive pre-sentence investigations and reports. These reports provide the Court with the information necessary to sentence defendants in criminal cases.

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Latest News

  • Probation Department
    Published on March 30, 2016

    Sonoma County criminal justice partners seek to evaluate the implementation and effectiveness of interventions intended to reduce recidivism by realigned offenders and other offenders under probation supervision.

Press Releases

Probation Department Badge 219

Contact Information

David Koch
Chief Probation Officer
Contact us by Phone

Adult Probation

600 Administration Drive
Room 104J
Santa Rosa, CA 95403
38.46627, -122.72658

Juvenile Probation

7425 Rancho Los Guillicos
Santa Rosa, CA 95409
38.443095, -122.5820337

Public Safety Realignment Act Committees

Community Corrections Partnership and Executive Committees

Agenda, Minutes & other meeting Materials


Agendas & Minutes

Agendas & Minutes

Detention Alternatives/Re-Entry/Programming
Agendas & Minutes

Data Management and Evaluation
Agendas & Minutes

Voting Rights for Californians

With Criminal Convictions or Detained in Jail or Prison

Eligibility Requirements

SB 272

Senate Bill 272 requires local agencies publish a list of systems that serve as original sources of data within an agency.

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