The source record
Listed as functioning in 2025.
The Census ACTIVE field is Y for this record.
- Census ID
- 161117
- Record type
- General-purpose government
- Classification
- County
- Status
- Functioning
2025 Census government inventory
County of Sonoma
General-purpose government in California. Browse the source-reported information below.
Census ID 161117 · Census county field: Sonoma · Functioning in the 2025 inventory2025 Census snapshot
Reported contact and location fields
Reported mailing address575 ADMINISTRATION DR · SANTA ROSA, CA · 95403-2823
Reported contact roleAdministrator
A role label, not a verified person’s name.
Census county fieldSonoma
Reported websiteOpen listed website ↗These are inventory fields, not newly verified office contacts. A county field or mailing address does not establish the exact service boundary.
Official 2026 California roster
Current public officials reported by the jurisdiction
COUNTY DIRECTORY
View source page 25 ↗Sonoma
Governing board and executive
County Supervisor — District 1Rebecca Hermosillo
County Supervisor — District 2David Rabbitt
County Supervisor — District 3Chris Coursey
County Supervisor — District 4James Gore
County Supervisor — District 5Lynda Hopkins
Records and elections
Finance and property
Public safety and justice
Chief Probation OfficerVanessa Fuchs
District AttorneyCarla Rodriguez
Fire ChiefRon Busch
Public DefenderBrian Morris
Sheriff-CoronerEddie Engram
Administration
County AdministratorDavid Guhin
County CounselJoshua Myers
Education and libraries
County LibrarianNikolaos Pelekis
Superintendent of SchoolsDr. Aime Carter
Judicial leadership
Presiding JudgeHon. Christopher Honigsberg
Assistant Presiding JudgeHon. Mark Urioste
Other public officials
Chief Administrative OfficerDavid Guhin
Behavioral HealthNolan Sullivan
Child Support Services DirectorGigi Mertle
Community Development DirectorMichelle Whitman
Developmental Services DirectorNolan Sullivan
Social Services DirectorAngela Struckmann
Emergency Services DirectorJeff Duvall
General Services Agency DirectorJohannes Hoevertsz
Health Care Services DirectorNolan Sullivan
Human Resource DirectorJanell Crane
Information Technology DirectorDan Fruchey
Public Works Agency DirectorJohannes Hoevertsz
Phone(707) 565-2431Address575 Administration Drive, Room 104A, Santa Rosa, CA 95403Jurisdiction websitehttps://sonomacounty.gov/ ↗
The CalRoster labels county entries elected and appointed officials and does not publish a selection method for each individual role. Election.org therefore does not infer elected or appointed status from the title alone. The Secretary of State notes that each local jurisdiction supplies its own roster data; this is a dated public record, not a live officeholder feed.
Published context
Scale and parent relationship
Population estimate481,8122023
About these sources and their limits
Evidence boundary
What each source proves—and what it does not.
Established by the published records
- The entity or system appears in the 2025 Census listing.
- Its Census category, identifier, and functioning/dormant field.
- Only the location, function, population, enrollment, and contact fields actually published.
- The separate 2026 CalRoster reports the public-official roles and holder text shown above.
Not established by these records
- Whether each governing or administrative role is elected, appointed, or mixed.
- The exact geographic service boundary or that a reported website remains current.