This guide helps users with an inmate search in Stanislaus County, California, including how to look up a person in custody and review basic booking details.

The main official channel is the Stanislaus County Sheriff’s Office Who’s in Jail service. Related Sheriff’s Office detention pages explain visitation, mail, phone access, commissary, and incarceration letters.

Stanislaus County Sheriff’s Office Who’s in Jail

Use the Sheriff’s Office search the Who’s in Jail list to look for a person currently listed in the county jail system.

Have one of these search details ready when possible:

  • Inmate name
  • Date of birth
  • 7-digit booking number

After you search, review the matching entries carefully before opening the full record.

  • Enter a name, date of birth, or 7-digit booking number.
  • Select the search option to view matching inmate records.
  • Use “View Full Booking Details” for the matching person.
  • Use “Clear All” if you need to start a new search.

Booking details shown online

The online inmate list can show identifying and booking information that helps confirm whether you have the correct person.

  • Booking number
  • Date of birth
  • Place of birth
  • Booking date
  • Arresting time
  • Arresting agency

Check names carefully. Similar names may appear, so use the booking number or date of birth when you have it.

Adult detention facilities

The Stanislaus County Sheriff’s Office Adult Detention Division is responsible for care and custody of people held in county detention facilities. The division operates four detention facilities and one court holding facility.

Programs may include church services, counseling, library access, vocational and skills workshops, educational programs, and recreational programs. Some incarcerated persons may also be eligible for the Jail Alternatives Program.

After locating a person, review the Sheriff’s Office visitation rules and scheduling information before planning a visit.

Video visitation is available at all four facilities through JailATM. In-person visitation for SDC-West and Minimum Housing Unit uses ICS. Accounts are reviewed before approval, and public visits must be scheduled at least 24 hours in advance.

Official visiting hours are 0800 to 2100 daily, but visitors should refer to the specific facility’s visit schedule. Public video visits are subject to monitoring and recording.

Visitors must have an email address to register and must present valid government identification each time they visit. Visitors may only visit one incarcerated person per day.

Mail, messages, phone access, and account funding

Several Sheriff’s Office detention services may help after a successful inmate search, especially when you need a booking number for mail or account setup.

Service Official information Key detail
Personal mail Review mail and books instructions Effective February 16, 2026, personal mail is processed through a central JailATM mail facility.
Electronic messages Review electronic messaging information Family and friends can send electronic messages and photos through JailATM.
Telephone accounts Review telephone access information Incarcerated persons generally have phone access from 6 am to 10 pm, depending on the facility.
Account funding Review account funding information Funding requires the Facility Locator No. 295354, Stanislaus County, CA, inmate ID number, and inmate name.

Incarceration letters

An incarceration letter outlines dates and times of incarceration within Stanislaus County jail facilities only. The fee is $25.00, and fees are subject to change.

To obtain one, the requester must appear in person with a valid form of identification. This is separate from using the online inmate list to check current booking information.

Stanislaus County Sheriff’s Office inmate contacts

Use these contacts for detention-related questions, facility follow-up, or records connected to incarceration.

  • Adult Detention Center, 200 E. Hackett Road Modesto, CA 95358
    Phone: (209) 525-5630
    Fax: (209) 525-5636
  • Detention Support Services, 436 E. Hackett Road Modesto, CA 95358
    Public Phone: (209) 525-5688
  • Records (Reports), 250 E. Hackett Road Modesto, CA 95358
    Phone: (209) 525-7117
    Fax: (209) 525-7111
  • Non-Emergency Calls
    Phone: (209) 552-2468

Common questions

Where do I search for a Stanislaus County inmate online?

Use the Stanislaus County Sheriff’s Office Who’s in Jail service to search by inmate name, date of birth, or 7-digit booking number.

What information can the inmate list show?

The list can show a booking number, date of birth, place of birth, booking date, arresting time, arresting agency, and a link to full booking details.

Do I need a booking number to send mail?

Yes. The Sheriff’s Office mail instructions state that the incarcerated person’s booking number must be included on mailings.

How do I get an incarceration letter?

An incarceration letter requires an in-person request with valid identification. The listed fee is $25.00, and the letter covers Stanislaus County jail facilities only.

Who handles detention facility questions?

The Adult Detention Center handles detention facility matters and can be reached at (209) 525-5630.