Napa County, website
Napa County in California uses area codes 510 and 707. This page is a phonebook directory where you will find the physical address and contact information of the most relevant government offices in Napa, including the Clerk’s Office, Sheriff’s Office, and the Health Department.
Sheriff’s Office
1535 Airport Blvd., Napa, CA 94558
Phone: (707) 253-4440
Superior Court
825 Brown St., Napa, CA 94559
Phone: (707) 299-1100
District Attorney
1127 First Street
Suite C, Napa, CA 94559
Phone: (707) 253-4211
Fax: (707) 253-4041
Clerk-Recorder Office
1127 1st St., Ste. a, Napa, CA 94559
Phone: (707) 253-4105
Fax: (707) 259-8149
Treasurer-Tax Collector
1195 Third Street
Suite 108
Napa, CA 94559
Phone: (707) 253-4327
Fax: (707) 253-4337
Health Department
2751 Napa Valley
Corporate Dr. B, Napa, CA 94558
Phone: (707) 253-4270
Napa County Jail
1125 3rd St., Napa, CA 94559
Phone: (707) 253-4401
Emergency Management
1195 Third Street, Suite B 20
Napa, CA 94559
Phone: (707) 299-1867
Social Services
2261 Elm St., Napa, CA 94559
Phone: (707) 253-4511
Fire Department
1125 Third Street
Hall of Justice, 2nd Floor
Napa, CA 94559
Phone: (707) 299-1464
Department of Education
2121 Imola Avenue
Napa, CA 94559
Phone: (707) 253-6810