San Mateo County, California — The Jail, the Sheriff, the Judges

The Detention Center

Maguire Correctional Facility and Maple Street Correctional Center

Operated bySan Mateo County Sheriff's Office, Corrections Division
County publishes jail namesYes — both facilities named on the Corrections Division page
Maguire Correctional Facility300 Bradford Street, Redwood City — 'also known as the main jail', primarily male
Maple Street Correctional Center1300 Maple Street, Redwood City — male and female, plus Men's and Women's Transitional housing
LocationsFour San Mateo County Corrections locations in total
Rated capacity1,378 beds across 3 facilities

Source: San Mateo County Sheriff's Office — Corrections Division · checked 2026-08-23

Transparency rating

5/10Partial

✓The jail is named
✓Who is in custody
✗Beds and daily population — not published
✓What it costs taxpayers
✓Deaths in custody
✗PREA audits — not published
✗Independent inspection — not published
✗Who else it holds, and for how much — not published
✓How to post bond
✗Phone, video and commissary rates — not published

This rates disclosure, not conduct — what San Mateo County publishes about a jail its taxpayers own, checked 2026-08-23. Nothing here says the jail is run well or badly. Every mark moves the moment the county posts the document.

The Building

You paid for it. Here is what the record says it cost.

Year builtMaple Street Correctional Center opened with a ribbon cutting on March 1, 2016
Original costNot found
Paid for byNot found
BedsMaple Street Correctional Center: 832 beds

Since then

Maple Street Correctional Center is a 260,000-square-foot, three-storey building at 1300 Maple Street built after a Jail Planning Unit formed in 2007 in response to overcrowding at the Maguire Correctional Facility and flooding at the Women's Correctional Facility

The Sheriff

Sheriff Ken Binder

Title as publishedSheriff
How he took officeAppointed by the Board of Supervisors on November 12, 2025 and sworn in the same afternoon as the county's 27th Sheriff, serving the remainder of the term to January 2029
PredecessorChristina Corpus, removed from office by the Board of Supervisors
Also serves asNot the coroner — San Mateo County has a separate Coroner's Office listed among its elected offices, at 225 37th Avenue, San Mateo

Still needed

Detention budget requested vs. approved, by year
Jail staffing levels and vacancy rate
Lawsuits and settlements involving the jail

Source: County of San Mateo — Supervisors Appoint Ken Binder as San Mateo County Sheriff · checked 2026-08-23

The Judges

Directory of Judges effective August 3, 2026. Only the Presiding Judge, Assistant Presiding Judge and Criminal Supervising Judge are listed here; the full directory also names commissioners, including J. Kevin Allen (Dept. 31, traffic/small claims/criminal) and Timothy E. Elliott (Dept. 30, civil).

Superior Court of California, County of San Mateo — Presiding Judge

Stephanie G. Garratt

Superior Court of California, County of San Mateo — Assistant Presiding Judge

Rachel Holt

Superior Court of California, County of San Mateo — Criminal Supervising Judge

Kevin E. Dunleavy

Still needed

The county's bond schedule
Share of the jail population held pretrial
Median time from booking to first appearance

Source: the state judiciary · checked 2026-08-23

The County Commissioners

They pay for the jail. The sheriff runs it.

What they controlThe detention budget, the building itself, and the agreements that let other agencies rent its beds.
What they don'tDay-to-day operations. The sheriff is separately elected and answers to voters, not to the board.
The boardBoard of County Commissioners →
Where the jail money is decidedAgendas and minutes →

Notes on the record

The Deaths In Custody page is the most complete AB 2761 posting in this group alongside San Francisco and San Luis Obispo, and it states that manner and means are added once the Coroner's Office returns a final cause of death.
The Sheriff runs the jails but does not determine cause of death; the County Coroner's Office is a separate department.
No jail population count or rated bed capacity is published; the Sheriff's Transparency Portal (https://experience.arcgis.com/experience/f941acef8b2d4c6c99a74309897415df/) is a crime data portal.
Fees: commissary runs through Keefe with a $100 monthly cap and one package per month, but no price list, phone rate or video visit rate is published.
PREA: https://www.smcsheriff.com/prea-report-sexual-misconduct sets out the zero-tolerance policy and how to report, but publishes no audit result.
Bail guidance is published as an FAQ: cash bond at the cashier's window in the jail lobby, or a bail bonds agency, with the Sheriff's Office 'prohibited by law from referring business to bail agencies'.
BSCC rated capacity for San Mateo is 1,378 beds (Maguire 704, Maple Street 586, Transitional Facility 88) — a state figure, not a county publication.
Five-member Board of Supervisors; the Board removed the elected Sheriff from office in 2025 under authority county voters granted in March 2025.

What California law requires

San Mateo County posts a death-in-custody page.

Posts 7 of 7

The page is here. A standing page headed 'Deaths In Custody' states the information 'is being provided in accordance with California Assembly Bill 2761' and publishes a table with Date of Death, County, Facility, Location, Race, Gender, Age, Custodial Status, Manner of Death and Means of Death. Seven deaths are listed from 01/07/23 to 09/29/25, with locations down to the housing unit (e.g. 'BHU- Behavioral Health Unit 4 West', 'General Population Housing Unit 3 Valley') and custodial status in statutory terms ('Booked – Awaiting Trial', 'Unsentenced - Awaiting Trial', 'Sentenced - Awaiting Transfer to CDCR'). The table has no agency column, but the page names the San Mateo County Sheriff's Office as the reporting agency in its text.

✓The agency with custodial responsibility
✓The county where the death occurred
✓The facility — and where inside it
✓Race, gender and age
✓The date of death
✓Custodial status — awaiting arraignment, awaiting trial, or incarcerated
✓Manner and means of death

California Penal Code § 10008, enacted by AB 2761 and in force since January 2023, requires the agency with custodial responsibility to post these seven items on its own website within ten days of a death in custody, and to update them within thirty days if the facts change. California is the only state in the country with this duty. Checked 2026-08-23. This records what is published, nothing more.

The record

13 people have died in the San Mateo County jail since 2017.

3 by suicide

6 illness or medical

13 deaths in all, 2016 onward

Deaths where the person had not been convicted of the charge holding them11 of 13

Most recent death on the state's record2025-09-29

Deaths: Texas Justice Initiative, the cleaned copy of the Texas Attorney General’s custodial death reports — the state’s own public index carries no cause of death and has not been refreshed since August 2025. Population: Texas Commission on Jail Standards monthly report. Counted, not estimated.

These three offices decide who sits in a cell in San Mateo County and what it costs the people who live here. Nationally, almost 77% of the people who died in local jails in 2019 had not been convicted of anything, and suicide was the leading single cause of those deaths (Bureau of Justice Statistics, Mortality in Local Jails, 2000–2019).

How much is your sheriff — and your judge — costing you?

Your VOTE is POWERFUL.

The sheriff who runs this jail is elected. So are the commissioners who pay for it.

The sheriff is on your ballot

The county elections office runs the polling place in San Mateo County and prints the ballot the sheriff’s name is on. Links from the California Secretary of State and vote.gov.

Names verified 2026-08-23 · dollars and outcomes still being gathered