Home / California / Humboldt County / Sheriff & police
22 listed agencies make arrests in Humboldt County: the sheriff, city police departments, campus police and state agencies. The arresting agency is usually not the facility that holds the person; the county page has the jail.
Booking, bond and release questions go to the jail, not the arresting agency. Confirm where the person is before you act.
The sheriff is usually the police department for unincorporated areas and the operator of the county jail. An arresting station is usually not the holding facility.
Checked Aug 20, 2026 against humboldtgov.org.
Walk-in Sheriff offices for a community in this county. After-hours and in-progress calls go through 911.
Checked Aug 20, 2026 against humboldtgov.org.
From the law-enforcement directory inventory. Not yet checked against the agency's own page; confirm the number before relying on it.
From the law-enforcement directory inventory. Not yet checked against the agency's own page; confirm the number before relying on it.
From the law-enforcement directory inventory. Not yet checked against the agency's own page; confirm the number before relying on it.
From the law-enforcement directory inventory. Not yet checked against the agency's own page; confirm the number before relying on it.
Checked Aug 20, 2026 against humboldtgov.org.
Checked Aug 20, 2026 against humboldtgov.org.
These departments police that city. A local arrest still usually books into the county jail.
Also listed: (707) 822-2426 (directory inventory, not yet checked against the agency)
Checked Aug 20, 2026 against cityofarcata.org.
From the law-enforcement directory inventory. Not yet checked against the agency's own page; confirm the number before relying on it.
Checked Aug 20, 2026 against eurekaca.gov.
Also listed: (707) 786-4225 (directory inventory, not yet checked against the agency)
Checked Aug 20, 2026 against ci.ferndale.ca.us.
Also listed: 621 11th Street, Fortuna map · (707) 725-7550 (directory inventory, not yet checked against the agency)
Checked Aug 20, 2026 against friendlyfortuna.com.
From the law-enforcement directory inventory. Not yet checked against the agency's own page; confirm the number before relying on it.
Checked Sep 12, 2026 against hoopa-nsn.gov.
Also listed: 675 Wildwood Avenue, Rio Dell map · (707) 764-5642 (directory inventory, not yet checked against the agency)
Checked Aug 20, 2026 against cityofriodell.ca.gov.
From the law-enforcement directory inventory. Not yet checked against the agency's own page; confirm the number before relying on it.
Campus police cover that campus only. Off-campus streets belong to the city police or the Sheriff.
From the law-enforcement directory inventory. Not yet checked against the agency's own page; confirm the number before relying on it.
Freeway collisions, traffic stops, and commercial inspection. City streets belong to that city’s police or the Sheriff.
From the law-enforcement directory inventory. Not yet checked against the agency's own page; confirm the number before relying on it.
From the law-enforcement directory inventory. Not yet checked against the agency's own page; confirm the number before relying on it.
Checked Aug 20, 2026 against chp.ca.gov.
Checked Aug 20, 2026 against chp.ca.gov.
Jail411 lists the public agencies that make arrests so families can find the right door. We are not a government agency, a police department or a live custody-records service.
Often the sheriff runs the county jail, but the jail is a separate facility with its own address, phone and rules. Open the jail page for booking, visiting, mail and money details.
Ask the person, check any paperwork or citation, or call the sheriff's non-emergency line. City arrests belong to that city's police; unincorporated areas and county roads usually belong to the sheriff; freeways usually belong to the state patrol.
The jail can. The arresting agency may confirm an arrest but does not hold the person. Call the jail's booking or information line first.
Send us the page and the detail that needs attention. Include the agency's official page when you have it. Do not send private booking documents or other sensitive personal information.
Practical guides for calls, visits, mail, money and release.