Sonoma Main Adult Detention Facility

Search his name at Sonoma County Inmate Search; the record shows the housing site. The Main Adult Detention Facility, 2777 Ventura Avenue, Santa Rosa, CA 95403 (707-565-1400), holds pretrial and sentenced inmates at medium and maximum security. The North County Detention Facility is at 2254 Ordinance Road, Santa Rosa, CA 95403, near the airport, on the same Sheriff line, 707-565-1400. If the screen is blank, ring the detention line at 707-565-1400.

Back to questions ↑

The Sheriff's Office runs both jails. Its headquarters is at 2796 Ventura Avenue, Santa Rosa, with a main number of 707-565-2511. That office also answers for the substations in Guerneville, 707-869-0202, and Sonoma Valley, 707-996-9495.

Back to questions ↑

Sonoma County has one Superior Court. Sonoma's new Hall of Justice, 625 Administration Drive, Santa Rosa, at the county campus, takes criminal and traffic cases along with juvenile dependency and mental health calendars. The court says a new six-story building with 15 courtrooms was finished in July 2026 and occupied in August. Its main phone is 707-521-6500. The Criminal Division office is open 8 a.m. to 3:30 p.m., Monday through Friday, and its phone, 707-521-6620, is answered from 8 a.m. to noon. Daily criminal calendars are posted on the first floor of the Hall of Justice and online at 4 p.m. each day. When an agent wrote the bond, Sonoma's court needs a letter from that agent accepting responsibility before a new date is set.

Back to questions ↑

State law gives 48 hours after arrest, not counting Sundays and holidays (Penal Code 825). Call the court at 707-521-6500 with her full name and ask for the courtroom and time.

Back to questions ↑

This county's current bail schedule was not readable for this page, so no dollar amounts appear here. Orders posted in 2020 set bail at zero for many offenses during the pandemic, so older figures you find online may be wrong. Ask the court at 707-521-6500 for the schedule now in force.

Back to questions ↑

Yes. Judges adopt a countywide schedule each year (Penal Code 1269b) and can go above or below it for one person. A hearing is required before release in serious and violent felony cases and certain domestic violence cases (Penal Code 1270.1). Since 2026, In re Kowalczyk, a California Supreme Court ruling, also tells judges to weigh what a person can afford and to try non-money release first.

Back to questions ↑

Call the detention line at 707-565-1400 before you go. Cash and cashier's or bank checks are the common choices in Santa Rosa, and card payments may carry a fee. This page could not confirm lobby hours or card use. The bail guide covers the choices.

Back to questions ↑

That is the Book, Print, Release process for people who were told to report to the Main Adult Detention Facility lobby for fingerprints or a DNA sample. It is by appointment only, on Tuesdays and Saturdays from 11 a.m. to 2 p.m., one person per hour. Book it at 707-565-1400. It is not a way to pay bail.

Back to questions ↑

The state Department of Insurance says the usual fee is ten percent, and some agents rebate part of it. The fee is not refunded. Have the Sonoma agent spell out the charge, the collateral and the skip penalty on paper.

Back to questions ↑

Possibly. Court staff can explain the property-bond steps. Ask the court at 707-521-6500 about equity, location of the land, and forms before you hire an appraiser.

Back to questions ↑

A Santa Rosa judge can hold someone without bail only in the three cases Article I, section 12 lists: capital crimes; violent or sex felonies with solid proof and a likely risk of grave injury; and felonies with threats of great harm the person would probably act on. Release also stalls in Santa Rosa if parole, probation or an outside warrant is in the way.

Back to questions ↑

At arraignment, tell the judge you want the Public Defender. The office is at 600 Administration Drive, First Floor, Room 111J, Santa Rosa. It answers at 707-565-2791 from 8 a.m. to 5 p.m. on weekdays, and its juvenile unit is 707-565-6304.

Back to questions ↑

Teens go to Juvenile Hall at 7425 Rancho Los Guilicos Road, Santa Rosa, 707-565-6300. The Juvenile Division of Probation at the same address is 707-565-6229. Some youth are released to a parent after a risk review. Juvenile files are private.

Back to questions ↑

Windsor Police is at 9291 Old Redwood Highway, 707-838-1234. Sonoma Police is at 175 First Street West, 707-996-3602. Ask the department who made the arrest, then check the jail line at 707-565-1400. We found no city jail in Sonoma that we could confirm.

Back to questions ↑

The bond can be forfeited. Whoever posted it has 180 days after notice, plus five for mailing, to bring him back (Penal Code 1305). Reach both the Santa Rosa court and a lawyer that day.

Back to questions ↑

Anyone demanding gift cards, crypto or a quick app transfer isn't from the Sonoma jail. Hang up and dial the detention line yourself at 707-565-1400.

Back to questions ↑

Generally, yes. The 2026 case In re Kowalczyk says cash bail has to be fair and payable. A Santa Rosa judge must think about the person's money and can't use an impossible number in place of a no-bail hearing.

Back to questions ↑

Sonoma's criminal court is the Hall of Justice in Santa Rosa, near the Main Adult Detention Facility at 2777 Ventura Avenue, Santa Rosa, CA 95403 (707-565-1400):

• Hall of justice: 625 Administration Drive, Santa Rosa, CA 95403 · 707-521-6500
• Civil and family law courthouse: 3055 Cleveland Avenue, Santa Rosa, CA 95403 · 707-521-6500
• Juvenile justice center: 7425 Rancho Los Guilicos Road, Santa Rosa, CA 95409 · 707-521-6700

Back to questions ↑

Sonoma's federal cases go to the Northern District of California, usually in San Francisco:

• He sees a magistrate judge at San Francisco federal courthouse, 450 Golden Gate Avenue, San Francisco, CA 94102.
• Pretrial Services looks at his record and roots in Sonoma.
• Release terms or detention follow.
• The Marshals keep anyone held.

Marshals: U.S. Marshals Service, 450 Golden Gate Avenue, 20th floor, San Francisco, 415-436-7677.

Back to questions ↑

SB 54 keeps the Sheriff from holding people for ICE. Release timing may be shared only after a serious or violent conviction. ICE can't interview without a TRUTH Act notice.

San Francisco ICE field office, 630 Sansome Street, Room 590, San Francisco, CA 94111, 415-365-8800 covers Sonoma. Detainees go to:

• Mesa Verde ICE Processing Center: 425 Golden State Avenue, Bakersfield, CA 93301
• Golden State Annex: 611 Frontage Road, McFarland, CA 93250
• California City detention site: 22844 Virginia Boulevard, California City, CA 93505

Back to questions ↑

• Sonoma County Inmate Search: name; booking, bail, court date.
• VINELink (https://vinelink.vineapps.com/): California; facility.
• Federal Bureau of Prisons Inmate Locator (https://www.bop.gov/inmateloc/): register number or name; pretrial: 415-436-7677.
• CDCR Inmate Locator (https://inmatelocator.cdcr.ca.gov/): CDCR number or name.
• ICE Online Detainee Locator System (https://locator.ice.gov/odls/): A-number or name and birth country; else 415-365-8800.

Back to questions ↑

The Sonoma court at 707-521-6500 can look up the case. Ask for the bail figure and any release terms.

Back to questions ↑

Sonoma County’s criminal courts recently changed addresses. In the summer of 2026 the Superior Court of California, County of Sonoma moved its criminal operations into a new Hall of Justice at 625 Administration Drive, Santa Rosa, CA 95403, on the county government campus north of downtown. The criminal clerk’s office opened there on July 20, 2026, misdemeanor courtrooms followed a week later, and the felony and master calendar courtrooms moved in on August 3, 2026, under new department numbers. Criminal, traffic, juvenile dependency and mental health calendars moved into the new Hall of Justice, and civil and family cases remain on Cleveland Avenue. The court’s main information line is (707) 521-6500.

Every adult criminal case from Santa Rosa, Petaluma, Rohnert Park, Healdsburg, Sonoma, Sebastopol, Windsor, Cloverdale, Cotati and the unincorporated county is heard by this single superior court. Petaluma, Healdsburg and the other Sonoma cities lost their local courts around 2000, when California went to one superior court per county. Older notices may still list the former Hall of Justice at 600 Administration Drive or old department numbers, so check the court’s case search before heading to court. Choose a charge type below.

Picked up for shoplifting or trespass in Sonoma, most people sign a ticket and go home instead of staying in jail. Things change if the person is booked into the Main Adult Detention Facility in Santa Rosa and not released: then a judge must hear the case within 48 hours, leaving out Sundays and holidays. All misdemeanors in the county, whether the arrest was made by Santa Rosa police, the Sheriff’s Office or the CHP, are prosecuted by the Sonoma County District Attorney’s Office.

The arraignment, held in one of the misdemeanor departments at the Hall of Justice, is where the charges are formally presented, a plea is entered (generally “not guilty” at this point) and release conditions are decided. For defendants who can’t afford a private attorney, the court appoints the Sonoma County Public Defender, and California courts don’t bill defendants for that appointed lawyer. A defense attorney may appear without the client in many misdemeanor cases.

Santa Rosa pretrial conferences come next and close most misdemeanors through deals, reductions or dismissals. Another route is misdemeanor diversion: for a wide range of charges, a judge can set conditions such as counseling or classes and then throw out the case once they’re met. Sonoma won't offer it for DUI, domestic violence or any registrable sex crime. Cases still unresolved after that are tried before a jury of 12. Defendants have the right to trial within 30 days of arraignment if in custody or 45 days if out of custody, but defense lawyers commonly waive that time.

Six months and $1,000 is the usual ceiling here, though a few misdemeanors reach a year. Sentences more often consist of probation, fines, community service or programs. A Sonoma misdemeanor usually wraps up in weeks, rarely more than a few months.

For felonies, the Sonoma DA files a complaint, and the case opens in a master calendar or felony department at the new Hall of Justice. A defendant held at the Main Adult Detention Facility must be arraigned within 48 hours, Sundays and holidays excepted. Release gets decided at that arraignment, and the 2021 In re Humphrey ruling makes the Santa Rosa judge ask whether the person can really pay any bail ordered. The 2026 Kowalczyk ruling adds that Santa Rosa judges can't use unaffordable bail to deny release.

Appointed counsel is in place from the first hearing for anyone who can’t afford to hire a lawyer. The Sonoma County Public Defender takes most of these cases. When the Public Defender can't take it, such as with a co-defendant already on its list, Sonoma's conflict panel lawyer is assigned.

Within 10 court days of arraignment, unless the defense waives the time, a judge holds a preliminary hearing to decide whether the evidence is sufficient for trial. Sometimes the Sonoma DA skips that hearing and gets a grand jury indictment. A Sonoma holding order leads to a filed information and a new arraignment, and trial is owed within 60 days unless the defense waives. Waivers are routine, and bargained pleas end most Sonoma felonies.

A conviction sends the file to Sonoma County Probation, whose presentence report the judge reviews before sentencing, normally no later than 20 court days after the verdict. Since 2011's realignment, many lesser felony terms in Sonoma are served at the Santa Rosa jail instead of prison. Prosecutors may also file certain offenses, known as “wobblers,” as misdemeanors, and a judge can sometimes reduce them after the fact. A felony case usually lasts from several months to more than a year.

Bail is frequently the first battleground in a violent felony case. In violent or sex-assault felony cases, Sonoma judges can order no bail when clear and convincing evidence points to probable great bodily harm if the accused is let out. That is why people accused of murder, rape or armed robbery in Sonoma County often remain in custody at the Main Adult Detention Facility for the life of the case. Otherwise, the case passes through the same felony stages: arraignment, a preliminary hearing or grand jury indictment, and trial.

Each of these convictions is a strike. A defendant who already has a strike on record faces a doubled term, and someone with two earlier strikes can receive 25 years to life. On top of that, a violent felony conviction requires serving 85% or more of the prison sentence.

• Murder: second-degree murder is 15 years to life and first-degree murder is 25 years to life. If jurors find special circumstances (for instance, a killing committed in the course of a rape or robbery), the options become life without parole or death. The Sonoma DA alone can pursue death, and California's 2019 pause means nobody has been executed since.
• Armed robbery: the robbery count alone can bring up to nine years. Using a gun adds 10 years, discharging it adds 20, and causing great bodily injury with it adds 25 years to life, though a 2018 change in the law lets judges strike these enhancements.
• Rape: a base maximum of eight years, raised when aggravated, and lifelong Tier 3 registration.

These cases are typically assigned to the most experienced trial lawyers in the Public Defender’s office or to qualified conflict counsel, and a capital prosecution requires the court to appoint a second defense lawyer. Sonoma victims can enforce Marsy's Law rights to hearing notices, a say at sentencing and repayment. The victim help line is (707) 565-8250. Given the forensic work, expert witnesses and investigation each side must complete, a timeline of one to three years is common, and homicide cases sometimes last five years or longer.

• Hall of justice: 625 Administration Drive, Santa Rosa, CA 95403 · 707-521-6500
• Civil and family law courthouse: 3055 Cleveland Avenue, Santa Rosa, CA 95403 · 707-521-6500
• Juvenile justice center: 7425 Rancho Los Guilicos Road, Santa Rosa, CA 95409 · 707-521-6700

Federal arrests from Healdsburg to Sonoma town are prosecuted in the Northern District of California, opening before a magistrate judge at San Francisco federal courthouse, 450 Golden Gate Avenue, San Francisco, CA 94102. Marshals: U.S. Marshals Service, 450 Golden Gate Avenue, 20th floor, San Francisco, 415-436-7677.

Santa Rosa judges handle the case as normal. SB 54 restricts release notice to people with a serious or violent conviction. Ask the public defender about immigration. ICE: San Francisco ICE field office, 630 Sansome Street, Room 590, San Francisco, CA 94111, 415-365-8800; sites:

• Mesa Verde ICE Processing Center: 425 Golden State Avenue, Bakersfield, CA 93301
• Golden State Annex: 611 Frontage Road, McFarland, CA 93250
• California City detention site: 22844 Virginia Boulevard, California City, CA 93505

• Sonoma County Inmate Search: county jail.
• VINELink (https://vinelink.vineapps.com/): statewide.
• Federal Bureau of Prisons Inmate Locator (https://www.bop.gov/inmateloc/): federal; pretrial 415-436-7677.
• CDCR Inmate Locator (https://inmatelocator.cdcr.ca.gov/): prison.
• ICE Online Detainee Locator System (https://locator.ice.gov/odls/): A-number or name and birth country; 415-365-8800.

Yes. The Sheriff's Office runs an online warrant search, and deputies answer at (707) 565-2511. Newer warrants may take time to appear, so call if unsure. The tool stops at the county line, and deputies take statewide questions by phone. The Superior Court's case portal shows the case itself. Attorneys can line up surrender at the Main Adult Detention Facility, 2777 Ventura Avenue, or seek a recall. Over at 625 Administration Drive, the Hall of Justice clerk helps with new court dates.