Humboldt County, website

Humboldt County in California uses area codes 530 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 Humboldt, including the Clerk’s Office, Sheriff’s Office, and the Health Department. 

Sheriff’s Office

826 4th St.
Eureka, CA 95501

Phone: (707) 445-7251

Email: [email protected] 

Court Clerks Office

421 Street
Eureka, CA 95501
Phone: (707) 445-7256

Family Juvenile Division

421 Street
Eureka, CA 95501
Phone: (707) 445-7256

Courtroom Clerks Division

825 5th St.
Eureka, CA 95501
Phone: (707) 445-7256

District Attorney’s Office

825 5th Street
Eureka, California 95501

Phone: (707) 445-7411

Fax: (707) 445-7416

Clerk-Recorder Office

825 5th Street
5th Floor, Eureka, CA 95501

Phone: (707) 445-7382

Treasurer Tax- Collector

825 5th St., Room 125, Eureka, CA 95501

Phone: (707) 476-2450

Fax: (707) 445-7608

Assessor

825 5th Street
Room 300, Eureka, CA 95501

Phone: (707) 445-7663
Fax: (707) 445-7410

Health Department

529 St.
Eureka, CA 95501

Phone: (707) 445-6200
Fax: (707) 445-6097

Humboldt County Jail

826 Fourth St.
Eureka, CA  95501

Phone: (707) 441-5121

Emergency Management

826 4th St.
Eureka, CA 95501

Phone: (707) 268-2500

Social Services

929 Koster St.
Eureka, CA 95501

Phone: (707) 476-4700

Fire Department

1106 2nd. St.
Eureka, CA 95501

Phone: (707) 267-9542

Department of Education

901 Myrtle Avenue, Eureka, California 95501

Phone: (707) 445-7000