Locate San Francisco County Jail #3 Annex Inmates

Jail #3 Annex Overview

San Francisco County Jail #3 Annex is part of the San Bruno custody campus at 1 Moreland Drive. The research identifies it through SFSO current jail data and annual-report material, rather than through a standalone public facility page like Jail #2 and Jail #3. SFSO current jail data lists the Annex in San Bruno as housing incarcerated males and gives a rated capacity of 372 beds. Annual-report material describes the Annex as the current and only built-in safety net for handling population increases.

The active Annex has a different status from the former County Jail #4 space at the Hall of Justice. SFSO says the former County Jail #4 closed September 5, 2020 and no longer houses incarcerated persons. That Bryant Street site now supports County Jail #2 with kitchen, laundry, and administrative functions. The active Annex page here is for the San Bruno Jail #3 Annex only, because that is the facility in the Facility Map and the only annex described as active jail housing.

The SFSO current jail data page is the matched public source for the active Annex facility and its capacity role.

That source helps separate current housing facilities from historical or support-only jail spaces.

Annex Capacity and Population

SFSO current jail data lists County Jail #3 Annex with a rated capacity of 372 beds. The 2024 annual report described the Annex as a safety net for population increases and listed A Dorm with a 60-bed maximum, B Dorm with a 60-bed maximum for the Psychiatric Sheltered Living Unit, and F and E Dorms as ready or being readied for overflow. The 2025 annual report says five of six dormitories were operational or ready after plumbing, security, and outdoor recreation improvements.

The Annex is best understood as an active population-management and dormitory housing site tied to the San Bruno campus. The 2025 annual report also notes dedicated housing for individuals with substance-use disorders. A separate average population figure for the Annex alone was not located in the official public source reviewed, so the researched capacity and operational descriptions are used without inventing a daily head count. The broader Jail #3/Annex annual-report capacity figure of 1,140 combines Jail #3 and the Annex and should not be used as an Annex-only count.

Search Annex Custody

The correct search path for the Annex is the official SFSO Find a Person in Jail roster. The Annex is part of the San Francisco county jail system, so there is no separate Annex-only public locator. Search by name, SF number, or booking number. The app accepts the first letters of a first and last name, a permanent SF number, or an exact booking number. A matching result should be used to confirm the current facility location before any visit, mail, deposit, or pickup plan.

Because the Annex functions as overflow and dormitory housing, a person's facility location may change as the Sheriff's Office manages classification, treatment needs, court movement, population pressure, or release status. Classification is the jail assessment that affects housing and security placement. A result showing a San Bruno jail location should be confirmed with SFSO if the wording is unclear. The older app map can reference older jail labels, so rely on the current official SFSO facility names and current jail data.

1. Search the SFSO jail roster by name, SF number, or exact booking number.
2. Review the location field and any San Bruno or Annex reference shown in the result.
3. Use the booking number and SFNO when contacting SFSO.
4. Follow County Jail #3/San Bruno campus visiting and mail rules unless SFSO publishes a separate Annex rule.
5. If no result appears, use the jail information line, GovQA records, VINELink, CDCR, BOP, or ICE based on the custody question.

Annex Address and Contact

The Annex uses the San Bruno campus address. The research did not locate a separate Annex public phone line, so the practical contact path is the SFSO after-hours jail line, the public jail information line, or the San Bruno jail line listed for Jail #3 questions. Callers should explain that the question concerns County Jail #3 Annex and provide the SF number or booking number when known.

Annex Visiting Rules

The research did not locate an Annex-specific public visiting schedule. Because the Annex is part of the County Jail #3 San Bruno campus, public users should follow SFSO County Jail #3/San Bruno visiting rules unless SFSO publishes a separate Annex rule for a particular housing unit. That means the first step is still the roster. Confirm the person is in custody, confirm the current location, and then use the GTL visit scheduler if a visit is available.

SFSO's general visiting page requires visitors to schedule from 9 a.m. to midnight the day before the visit, arrive 30 minutes early, and present current government-issued photo ID. Visitors may need the incarcerated person's name or SF number and must provide visitor name, date of birth, email, home address as printed on ID, and phone number. Up to two people may come with the visitor, with the same information needed for them. Rules bar cell phones, cameras, food, drinks, personal items, drugs, weapons, and prohibited clothing.

Annex Mail and Money

Mail, phone, money, and commissary rules for the Annex should follow the SFSO jail rules used for the San Bruno campus unless SFSO gives a separate instruction. Use the person's name, SF number, and current facility label. If SFSO directs mail through County Jail #3, the San Bruno address should be used. Mail must go through the U.S. Postal Service, fit within SFSO size rules, and contain no cash or personal checks. Publisher-only rules apply to books, newspapers, and magazines.

Money can be deposited through the 425 7th Street money window, the 425 7th Street lobby kiosk, the County Jail #3 kiosk during visiting hours for approved registered visitors, or TouchPay. The SFSO deposit page is relevant because Annex deposits use the same San Francisco County Jail Facilities path.

The key identifier is TouchPay locator number 294066, paired with California and San Francisco County Jail Facilities.

Annex History and Use

The Annex opened briefly in 2021 for COVID social distancing and reopened October 27, 2023 because of rising jail populations, according to the research from SFSO annual-report material. By 2025, five of six dormitories were operational or ready after plumbing, security, and recreation-area upgrades. The annual report also noted dedicated substance-use-disorder housing. Those details make the Annex more than a placeholder facility; it is an active part of San Francisco's jail population strategy.

At the same time, the Annex should not be over-described. No official Annex-only public roster, no separate public phone line, and no separate public visiting calendar were located. The right page treatment is therefore specific but cautious: use the SFSO current-custody roster, explain the San Bruno campus connection, list the researched 372-bed capacity, and direct visitors to confirm current housing with the Sheriff's Office before relying on Jail #3 rules for a particular person.