Listed below is contact information for each Department. Visit the Department's pages for a more detailed listing.

Agricultural Department
Agricultural Commissioner
Sealer of Weights & Measures
Physical address:
2543 Cordelia Rd.
Fairfield, CA 94534
Mailing address:
675 Texas St.
Fairfield, CA 94533
Phone: 707-784-1310
Fax: 707-784-1330

Assessor / Recorder
675 Texas St., Suite 2700
Fairfield, CA 94533
Phone: 707-784-6200
Assesor
     Fax: 707-784-6209
     E-mail: [email protected]
Recorder
     Fax: 707-784-6911
     E-mail: [email protected]

Auditor Controller
675 Texas Street, Suite 2800
Fairfield, CA 94533
Phone:707-784-6280
Fax:707-784-3553

Board of Supervisors
675 Texas St., Suite 6500
Fairfield, CA 94533
Phone: (707) 784-6100
Fax: (707) 784-6665
E-mail: [email protected]

Child Support Services
675 Texas St. Suite 5700
Fairfield, CA 94533
Phone: 866-901-3212
Fax: 707-784-7483
Customer Connect

County Administrator’s Office
675 Texas St., Suite 6500
Fairfield, CA 94533
Phone: (707) 784-6100
Fax: (707) 784-7975
E-mail: [email protected]

County Counsel
675 Texas Street, Suite 6600
Fairfield, CA 94533
Phone:707-784-6140

Department of Information Technology
675 Texas Street, Suite 3700
Fairfield, CA 94533
Phone: 707-784-3000
Fax: 707-784-4883

District Attorney - Krishna A. Abrams
Fairfield
     675 Texas Street, Suite 4500
     Fairfield, CA 94533
     Phone: 707-784-6800
     Fax: 707-784-7986
Vallejo
     321 Tuolumne Street
     Vallejo, CA 94590
     Phone: 707-553-5321
     Fax: 707-553-5654
E-mail: [email protected]

Emergency Medical Services (EMS) 
355 Tuolumne Street
Suite 2400, MS 20-240
Vallejo, CA 94590
Phone: 707-784-8155
Fax: 707-421-6682

Family Violence Prevention
475 Union Avenue
Fairfield, CA 94533
Phone:707-784-7789
Fax:707-784-7605

First 5 Solano Children & Families Commission
601 Texas Street, Suite 210
Fairfield, CA 94533
Phone: 707-784-1332
Fax: 707-784-1345
E-mail: [email protected]

General Services
Divisions: 
     - Architectural Services
     - Central Services (Purchasing, Mail, Reprographics)
     - Facilities Operations
     - Fleet Management
     - Nut Tree Airport
     - Real Estate Management or Administration
675 Texas Street, Suite 2500
Fairfield, CA 94533

Health & Social Services
275 Beck Avenue
Fairfield, CA 94533
Older & Disabled Adult Services
     Phone: 707-784-8259
Child Services
     Phone: 800-544-8696
Employment and Eligibility Services
     Phone: 707-784-8050
Mental Health Managed Care
     Phone: 800-547-0495
Public Health Services
     Phone: 707-784-8600
Substance Abuse Services
     Phone: 707-784-2220
Special Investigations
     Phone: 707-784-6424

Human Resources
675 Texas Street, Suite 1800
Fairfield, CA 94533
Phone:707-784-6170
Fax:707-784-6014

Library
1150 Kentucky Street
Fairfield, CA 94533
Phone:866-572-7587
For contact information for a particular branch Click Here

Office of Emergency Services
530 Clay St.
Fairfield, CA 94533
Phone: 707-784-1600
Email: [email protected]

Parks
Please see County Parks page at www.SolanoCounty.com/Parks

Probation
475 Union Street
Fairfield, CA 94533
Phone:707-784-7600
Fax:707-784-7605

Public Defender
Fairfield
     675 Texas Street, Suite 3500
     Fairfield, CA 94533
     Phone: 707-784-6700
     Fax: 707-784-6747
Vallejo
     355 Tuolumne Street, Suite 2200
     Vallejo, CA 94590
     Phone: 707-553-5241
     Fax: 707-553-5013

Alternate Public Defender
Fairfield
     675 Texas Street, Suite 3600
     Fairfield, CA 94533
     Phone: 707-784-6755
     Fax: 707-784-6706
Vallejo
     355 Tuolumne Street, Suite 2300
     Vallejo, CA 94590
     Phone: 707-553-5671
     Fax: 707-553-5073

Public Works
675 Texas Street, Suite 5500
Fairfield, CA 94533
Phone:707-784-6765
Fax:707-784-2894

Registrar of Voters
675 Texas Street, Suite 2600
Fairfield, CA 94533
Phone:707-784-6675
        888-933-VOTE (8683)
Email: [email protected]

Resource Management
675 Texas Street, Suite 5500
Fairfield, CA 94533
Phone:707-784-6765
Building Permit Inspection
     Phone:707-784-4750

Sheriff-Coroner
530 Union Avenue, Suite 100
Fairfield, CA 94533
Phone:707-784-7000

Treasurer Tax Collector County Clerk
675 Texas Street, Suite 1900
Fairfield, CA 94533
Phone:707-784-7485
Email: [email protected]

Veteran Services
675 Texas Street, Suite 4700
Fairfield, CA 94533
Phone: 707-784-6590
Fax: 707-784-0927