San Mateo County Jail Roster Overview
The official online jail roster is the San Mateo County Sheriff's Office Inmate Locator. It is linked from the sheriff's corrections pages and is designed for current in-custody searches. The search screen says to enter both first name and last name. The same screen includes a middle-name field, a gender dropdown, a phonetic-search checkbox, Clear, and Find Inmate controls.
The roster is not a full criminal-history database. The locator warns that information shown for arrested or in-custody people is the most recent known to the Sheriff's Office and may change as a person moves through the judicial process. It also warns that names may not appear in some circumstances because of law-enforcement disclosure exemptions. A failed San Mateo County jail roster search should therefore lead to the jail information phone line, the arresting agency, the court index, or a public-records request, not a final conclusion.
The sheriff's 2016 locator release said the tool provides facility location, pending charges, custody status, next court date, and bail amount. That release also said the phone fallback remains available for people without computer access. Current public pages still make the web locator the first search point, while the research confirms other official channels for court, state prison, federal prison, immigration custody, and custody notifications.
San Mateo County Roster Search Fields
The search form is distinctive because it asks for both first and last name instead of a booking number. The page does not advertise wildcard searching or a booking-number field. That means spelling and identity details matter, and the phonetic checkbox becomes useful when a family member knows the name by sound but not exact spelling.
The San Mateo inmate locator source shows the name fields and phonetic checkbox used for current custody lookup.
The public search screen supports a focused roster lookup, but it does not replace a phone call when the name is common, recently booked, or possibly withheld.
| Field | Type | Required | Use in San Mateo County inmate records |
|---|---|---|---|
| Enter First Name | Text | The page instruction says yes | Use the person's legal first name when known. |
| Enter Middle Name | Text | No | Add it to narrow a common name. |
| Enter Last Name | Text | The page instruction says yes | Required with first name under the page instruction. |
| Gender | Dropdown | No | Options are All, Male, and Female. |
| Use phonetic search | Checkbox | No | Use when first or last name spelling is uncertain. |
| CSRF token | Hidden | System required | Prevents stale or automated form submissions. |
Use the San Mateo County Inmate Roster
A strong San Mateo County inmate records search starts with the roster, then checks the appropriate fallback channel. A person booked at Maguire may be housed at Maguire, Maple Street, transitional housing, or another authorized placement after classification. A person sentenced to state prison leaves the county roster path and should be searched through CDCR instead.
- Open the official San Mateo County Sheriff's Office Inmate Locator.
- Enter both first and last name because the public instructions call for both.
- Add middle name or gender only if it helps distinguish common names.
- Use phonetic search if the spelling may vary.
- Read the result as current sheriff information, not a final court judgment.
- If no result appears, call the Maguire inmate information line or contact the arresting local agency.
- Use the court index after formal charges are filed, and CDCR/BOP/ICE for non-county custody.
Note: A no-result search is not proof that no arrest or custody exists because the county locator itself notes disclosure exemptions.
San Mateo County Inmate Profile Fields
The most defensible profile description comes from the sheriff's own locator release. It says a San Mateo County inmate record can include facility location, pending charges, custody status, next court date, and bail amount. The research did not capture a live public profile, so fields such as booking number, booking photo, housing pod, physical description, or release date should not be treated as confirmed roster fields.
| Field or category | What it shows |
|---|---|
| Facility location | The jail or correctional location known to the Sheriff's Office. |
| Pending charges | Jail booking charges that may differ from formal filed charges. |
| Custody status | The person's status in county custody as known to the roster. |
| Next court date | A court appearance date known to the jail system. |
| Bail amount | The amount known to the sheriff, subject to court changes and holds. |
| Mugshot | Not confirmed in the captured live profile research. |
| Booking date or number | Releasable under California arrest-information law when no exception applies, but not confirmed as a public roster field. |
Pending charges require caution. The jail label can be the charge known at booking, while the District Attorney later files, amends, reduces, or declines court charges. The formal court record belongs to the Superior Court pathway, not the jail roster alone.
San Mateo County Inmate Access Channels
Every San Mateo County inmate records search should match the person's custody stage. The county roster covers current sheriff custody. The 24-hour phone fallback historically published for Maguire was (650) 363-4000 ext. 6070, and the caller needed the inmate's name and correct date of birth. The general corrections number is (650) 599-3000. For public-record requests, the sheriff provides a webform, while attorneys, involved parties, and people seeking their own records are routed to the report/request process and sheriffs_recordsrequest@smcgov.org with ID or authorization.
| Need | First official channel | Fallback |
|---|---|---|
| Current county custody | San Mateo inmate locator | Maguire phone line or arresting agency. |
| Current court date or filed charges | MIDX court index | Odyssey Portal or Criminal Court Clerk. |
| Older or missing booking information | Sheriff public records request | Report request process for own records or attorneys. |
| Sentenced state prison | CDCR CIRIS | CDCR Identification Unit. |
| Federal sentenced custody | BOP inmate locator | Federal court or U.S. Marshals context. |
| Immigration detention | ICE ODLS | ICE field office or attorney channel. |
| Custody notifications | VINELink | Jail or court direct confirmation. |
San Mateo County Jail Facilities
The county jail records path often begins with Maguire because all bookings were stated to occur there. Maple Street is the newer correctional center with male and female housing, dedicated transitional housing, and program space. The Transitional Facilities and Alternative Sentencing Bureau matter because they affect custody placement, work furlough, and electronic monitoring. San Francisco County Jail #3 must be separated because it sits in San Bruno but belongs to San Francisco custody.
Maguire Correctional Facility
300 Bradford Street
Redwood City, CA 94063
(650) 599-3000
Maple Street Correctional Center
1300 Maple Street
Redwood City, CA 94063
(650) 599-3000
Alternative Sentencing Bureau
1300 Maple Street
Redwood City, CA 94063
(650) 599-3030
Booking Process in San Mateo County
The county's Maple Street opening materials state that all bookings are done at Maguire Correctional Facility. Booking can include identity confirmation, fingerprints, a booking photo if taken, warrant and hold checks, property handling, and search or security screening. Penal Code section 4030 sets statewide limits on certain booking searches, including limits on strip and body-cavity searches for many misdemeanor or infraction arrests unless legal conditions are met.
Medical and mental-health screening also matters in San Mateo County. The sheriff's 2024 public materials said about 70 percent of people booked into Maguire had alcohol or drug addiction, around 48 percent had a form of mental illness, and two-thirds left within five days. Those facts help explain why a San Mateo County inmate record can change fast as staff classify the person, the court reviews release, bail changes, or a transfer occurs.
After booking, the case can split into several records: the arresting-agency report, the jail booking record, the roster entry, the District Attorney charging decision, the Superior Court case, a VINE notification record, and possibly a CDCR, BOP, or ICE custody record. Each source answers a different question.
San Mateo County Jail Visitation
Visitation information is published by facility. The sheriff's Maguire page links MCF Visiting Information Rev. 11.07.23 in multiple languages. The Maple Street page links in-person personal visiting policy PDFs, MSCC Visiting Information Rev. 09.12.23, translations, and video visitation. The research did not extract the full PDF schedules, so exact visit slots should be checked in the current sheriff PDF before travel.
| Facility | Official schedule source | San Mateo County inmate records note |
|---|---|---|
| Maguire Correctional Facility | Maguire visitation page and MCF PDF | A December 2025 sheriff release said in-person visits resumed after elevator repair and were scheduled first-come, first-served beginning 6:30 a.m. the day before the intended visit. |
| Maple Street Correctional Center | Maple Street visitation page and MSCC PDFs | Page references in-person policy material and video visitation. |
| San Francisco County Jail #3 | San Francisco Sheriff visitation process | Do not use San Mateo jail visitation rules for this San Francisco-operated jail. |
Mail and money rules are county-wide for San Mateo jail inmates. Personal mail goes through Smart Communications-San Mateo County Jail in Seminole, Florida, while commercial publications use the facility address. The sheriff commissary page names Keefe Commissary, states that both facilities have lobby kiosks, and says package orders are limited to one per month and not more than $100.00.
| Service | San Mateo County rule |
|---|---|
| Personal mail | Smart Communications-San Mateo County Jail, Attention inmate name-ID number, P.O. Box 9126, Seminole, FL 33775-9126. |
| Commercial publications | Publisher-direct only, sent to Maguire or Maple Street with inmate name and ID number. |
| Commissary | Keefe Commissary is named by the sheriff. |
| Package order | One per month, not to exceed $100.00. |
| Deposit fees | No fee table was captured; check vendor checkout or kiosk before payment. |
San Mateo County Inmate Programs
San Mateo County inmate records often lead families to practical support after the roster confirms custody. The sheriff's inmate programs page lists cognitive behavioral, education, literacy, vocational, and activity-based programs. Local partners include Service League of San Mateo County, Five Keys Schools and Programs, Stanford Prison Education Project, Project READ, JobTrain, San Mateo County Office of Education, Peninsula Conflict Resolution Center, and Peninsula Humane Society.
The San Mateo inmate programs source shows the county's in-custody programming categories and partners.
The program list supports the local custody picture because Maple Street was built with space for education, treatment, job training, culinary training, and other reentry work.
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