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Find someone in Alameda County custody.

Start with the Alameda County Sheriff Inmate Locator. Save the booked name, Personal File Number, and current location before you plan anything else.

Follow the steps

One step at a time

Move from the arrest to the current door.

The police department that made the arrest and the facility holding the person may be different.

  1. Search the current-custody record

    Use the booked name or PFN in the Alameda County Sheriff Inmate Locator. Try the full legal name before assuming there is no record.

    Open the official locator ↗

  2. Allow for city holding

    Berkeley, Fremont, Hayward, and San Leandro have short-term holding facilities. A recent arrest may not have reached Santa Rita yet.

  3. Call the arresting agency if needed

    If the person is not listed, ask the agency that made the arrest where the person was taken. Names may also be withheld from the public result.

    Alameda County law-enforcement directory →

  4. Save the PFN and location

    Write down the exact booked name, PFN, and current facility. You will need those details for visits, personal mail, and many account questions.

  5. Confirm again before acting

    Housing and release status can change. Check the locator again before driving to Dublin, sending mail, or paying a service.

    Open the Santa Rita guide →

Keep these handy

The details you will need.

Booked name

Use the spelling shown in the Sheriff record, not a nickname.

Personal File Number

Keep the PFN with the person’s name. Santa Rita uses it for visits and personal mail.

Date of birth

Have it ready for visit scheduling and to distinguish similar names.

Current location

Confirm Santa Rita is still the housing location before traveling, mailing, or paying.

A closer look

Details that help you get it right.

Do not use the adult locator for youth or federal custody.

Juvenile Hall and Camp Wilmont Sweeney are run by County Probation. FCI Dublin and its camp are closed federal facilities. Those systems do not use the Sheriff’s adult custody record.

If no result appears

Work through the local custody path before assuming the person was released.

  • Check the legal spelling and PFN if you have it.
  • Call the arresting agency about short-term city holding.
  • Call Santa Rita at (925) 551-6500 if a county booking is expected.
  • Ask which custody system is responsible if the case is juvenile, state, federal, or immigration.

What to keep from the result

The record is the key to the next task.

  • Exact booked name
  • PFN
  • Current facility
  • Current custody status

Plan the next family task →

Official instructions

Use the service that handles this task.

Jail411 explains the route. The Alameda County Sheriff and its listed providers control custody records, appointments, accounts, acceptance rules, and payments.

Open the Sheriff Inmate Locator ↗

Alameda source set checked September 12, 2026: Alameda County Sheriff Inmate Locator ↗ · Alameda County Sheriff ↗

Confirm time-sensitive requirements with the Sheriff or provider before traveling, mailing, or paying.

Adult county custody

Santa Rita is the county jail.

Santa Rita Jail

5325 Broder Boulevard
Dublin, CA 94568

The current Alameda County adult jail. Confirm the person is still here before applying any visiting, mail, phone, or money instructions.

Recent arrest?

The person may still be in a city holding facility. Use the Sheriff locator and contact the arresting agency if the county record has not appeared.

Find the arresting agency →

More help for
Alameda County families.

Choose the guide for the next thing you need to do.