Main Office Headquarters

Sonoma Sheriff's Main Office

The Sonoma County Sheriff's Office moved into our current building on April 19, 2002. This two-story, concrete block structure is over 60,000 square feet and houses the Sheriff's Administrative staff, Investigations Bureau, Dispatch Bureau, the Crime Scene Investigation Laboratory and is where the majority of Patrol staff work.

This building also houses the Central Information Bureau, the Fiscal Unit, the Civil Bureau, the Technical Services Bureau, and the entire Administration Division.


Main Adult Detention Facility

Main Adult Detention Facility

The Main Adult Detention Facility (MADF) is located at 2777 Ventura Avenue in the County of Sonoma's Hall of Justice Complex. The Main Adult Detention Facility (MADF) was opened in 1991. This "new generation" facility was based on a "direct supervision" design, as opposed to the "linear" design of the County's earlier jails. Originally designed to hold close to 500 inmates, the facility quickly reached it's housing capacity and an expansion was opened in 1997 to provide an additional 290 beds. In 2018 our Main Adult Detention Facility has a total capacity of 1473 inmates. 

The facility is a medium/maximum security facility, housing both pre-trial and sentenced inmates.The direct supervision concept at MADF encourages officer contact with inmates and emphasizes the use of interpersonal communication skills. Officers provide a leadership role and make themselves available to inmates by using the new generation/direct supervision model for inmate management.


North County Detention Facility

North County Detention Facility

The North County Detention Facility (NCDF) is located five miles north of Santa Rosa at 2254 Ordinance Road. Adjacent to the Charles M. Schulz Airport, the site originally housed the Santa Rosa Army Airfield (SRAAF) during World War II. After WWII, SRAAF was deactivated and subdivided into several parcels. In 1967 one of these parcels became the "honor farm" for 35 minimum security inmates. The facility grew to house the rated capacity of 559 inmates until April 1997, when 172 inmates were moved to the expansion at the Main Adult Detention Facility (MADF). 

The NCDF sits on 15.3 acres with 9.62 acres for the facility and 5.91 acres used for the Agriculture Program. Inmate programs are coordinated by the Program Officer and benefit both inmates and the county. To be eligible for work crew programs, inmates are classified at booking and cannot have violent charges, escape histories, or disciplinary behavior problems. Currently, inmates work in variety of work details on & off site which include:

  • MADF and NCDF laundries

  • Commissary and Food Services

  • Facility ground, keeping, and janitorial

  • Cal Trans, road and dump crews

  • Equipment garage, fairgrounds, and airport

  • Supervised Adult Crew

  • Agriculture

As with the Main Adult Detention Facility, the primary duties of a Correctional Deputy are the supervision and care of inmates while in custody. In addition to these duties, there are a variety of other assignments and specialty positions Correctional Deputies can work at NCDF.