Contra Costa County - Martinez Detention

County Jail

Last Updated: December 21, 2022
1000 Ward St, Martinez, CA 94553
Contra Costa

Contra Costa County - Martinez Detention is for County Jail offenders sentenced up to twenty four months.

All prisons and jails have Security or Custody levels depending on the inmate’s classification, sentence, and criminal history. Please review the rules and regulations for County - medium facility.

The phone carrier is Global Tel Link (GTL) - ConnectNetwork, to see their rates and best-calling plans for your inmate to call you.

If you are unsure of your inmate's location, you can search and locate your inmate by typing in their last name, first name or first initial, and/or the offender ID number to get their accurate information immediately Registered Offenders

Satellite View of Contra Costa County - Martinez Detention

You can support your loved ones at Contra Costa County - Martinez Detention on InmateAid, if you have any immediate questions contact the facility directly at 925-335-4600.

When someone you care about gets locked up, it's tough to figure out all the ins and outs of jail life. From sending mail to visiting, there are a lot of things to sort out. And getting info about the arrest? Not always easy. That's where this webpage comes in handy. It's here to help you get a handle on how things work at Contra Costa County - Martinez Detention so you can stay connected and support your loved one behind bars.

The Contra Costa County - Martinez Detention is a detention center located at 1000 Ward St Martinez, CA which is operated locally by the Contra Costa County Sheriff's Office and holds inmates awaiting trial or sentencing or both. Most of the sentenced inmates are here for less than two years. Contra Costa County accepts inmates from surrounding towns, Martinez Police Department, and the US Marshal's Service.

New detainees arrive at the jail regularly, with some being released on bail, placed under pretrial services caseloads, supervised by probation agencies, or released on recognizance with a court appearance agreement. Those who are not released await their court appearances at the jail, receiving accommodations including bedding and meals. You can see all the arrest records for California here.

The Martinez Detention Facility (MDF) opened in 1981 and is one of three detention facilities operated by the Contra Costa County Office of the Sheriff. The MDF is a maximum security facility and the primary point of intake for all arrestees booked in Contra Costa County. The MDF houses a diverse population of both pre-sentenced and sentenced inmates who do not qualify for less restrictive environments.

The MDF administration and staff work in collaboration with many community-based organizations to provide educational and rehabilitative programs for the inmates. The MDF also offers a broad range of medical and psychiatric services to the inmates provided by physicians, psychiatrists, dentists, nurses, and mental health clinicians. The MDF staffing consists of both sworn and professional staff members (assigned to operational and support roles) who work diligently to provide a safe and clean housing environment for inmates.

In 1984, the advisory board of the N.I.C. formally endorsed the direct supervision / non-barrier approach to correctional facility design and operation for jurisdictions contemplating construction or renovation of prisons and jails.

Inmate Locator

To utilize the Inmate Search page on InmateAid, begin by selecting the relevant prison facility in California. This allows you to view the current list of inmates housed at Contra Costa County - Martinez Detention.

The second section features the InmateAid Inmate Search tool, providing a user-generated database of inmates. You can access this resource to utilize any of InmateAid's services. If you require assistance in creating an inmate profile to maintain communication, please contact us at, and we'll gladly help you locate your loved one.

As a last resort, you might have to pay for that information if we do not have it. The Arrest Record Search will cost you a small amount, but their data is the freshest available and for that reason, they charge to access it.

Visitation Information

Martinez Detention Facility - Visitation

Monday, Tuesday, Wednesday, Saturday, and Sunday:

  • 8:30 a.m. - 11:00 a.m.
  • 1:00 p.m. - 5:00 p.m.
  • 7:30 p.m. - 9:00 p.m.


  • 8:30 a.m. - 11:00 a.m.
  • 1:00 p.m. - 5:00 p.m.


  • 7:30 p.m. - 9:00 p.m.

Up to four visitors may visit an inmate at one time and all visitors must be scheduled and enter the facility no later than 30 minutes prior to the end of any visiting block. Registration of scheduled visitors will begin 30 minutes before the posted visiting time. Visitors are required to have their visit slip time stamped and in the tray 30 minutes prior to their visit.

  • Visiting an inmate

Social visits will be scheduled only by the inmates. Please refer to Visiting Rules and Regulations for specific guidelines regarding these visits.

Custody Services Bureau information posted is for reference only and does not necessarily include a specific policy in its entirety. Custody Services policy is reviewed on a frequent basis and is subject to change at any time.

Visiting Rules and Regulations

Each inmate and visitor is responsible for his or her own conduct during visits. Any violation of laws, regulations or procedures governing visits may result in termination, suspension, restriction, revocation, arrest, or denial of visiting with the person or persons involved. Visitors may be excluded from visiting activities by the Facility Commander because of prior misconduct. The visiting process is governed by rules and regulations.

Visitors are expected to dress appropriately and maintain a standard of conduct during visiting that is not offensive to others and is consistent with the goal of making visiting a safe, positive, and constructive time for families, inmates, and staff.

All regulations pertaining to visiting shall be made available to all visitors, staff, and inmates at the time of admission.

The privacy of inmates and their visitors shall be respected subject to the need to verify the identity of an inmate or visitor, enforce laws, regulations, and procedures, and/or ensure the safety of persons and facility security. The Office of the Sheriff may utilize video-recording devices in visiting areas, excluding areas where confidential attorney consultations occur.

Visiting privileges shall be suspended only by order of the Facility Commander, except where the suspension is imposed as part of a formal disciplinary proceeding. Inmates should not be denied access to visits with persons of their choice except when the Facility Commander or designee can present clear and convincing evidence that such visitation jeopardizes the safety and security of the facility or the visitors. The Classification Unit will be notified of all visiting suspensions.


SERVICE ANIMALS: Any animal that is utilized for the purpose of aiding an individual with a disability.


Any violation of the rules and regulations by an inmate may result in disciplinary action.

Visitors are subject to search of their person and/or property. Inspections may include a search of the visitor's person, personal property, and vehicle(s) when there is probable cause to believe the visitor is attempting to introduce or remove contraband or unauthorized items or substances into, or out of, a facility.

Visitors will not be forcibly searched unless the visitor is being detained for unlawful actions or activities.

Visitors shall be required to submit to contraband and/or metal detection device(s), and a thorough search of all personal items, including inspection of a wheelchair, implant, prosthesis or assistive device, prior to being allowed to visit with an inmate.

All persons under 18 years of age must be accompanied by their parent or legal guardian. Accompanying adults shall ensure that minors remain under their constant control and supervision.

The maximum number of visitors permitted to visit an inmate at one time is determined by the individual facility.

Infants and toddlers that must be carried are not considered to be visitors.

Nursing mothers shall be discreet and covered when breastfeeding their child in the visiting area if necessary. Failure to do so shall result in termination of visiting for that day.

Visitors under the influence of alcohol or drugs will not be allowed to visit and may be subject to arrest.

It is prohibited or unlawful for visitors to carry items such as cell phones, pagers, palm or laptop computers, cameras, tape or digital recorders, purses, bags, briefcases, or any other items into the visiting areas. Personal items should be left at home or locked in the visitor's vehicle. Items may also be locked in the public lockers located in the lobby area.

Possession of tobacco or tobacco products within the detention facilities is unlawful.

No food or drink is permitted in the visiting areas.

Visitors are required to proceed directly to their respective visiting areas and to remain there until their visit is completed. Upon completion of the scheduled visit, the visitors must leave the facility.

Visitors found visiting an inmate other than the one scheduled shall have their visiting privileges revoked and will be required to leave the facility.

There will be no physical contact between visitor and inmate.

Visitors may not give articles or gifts to the inmate. Visitors and inmates attempting to exchange or pass any item shall have their visit terminated immediately.

When a deputy announces that the visit is over, the visit will end immediately.

An inmate may refuse to see any visitor.

Inmates are required to submit to search at the request of a deputy.

Visitors are not permitted to loiter in or about vehicles in the parking lot. Visitors refusing to comply may be asked to leave and may be subject to arrest. Special consideration will be made to individuals in designated disabled parking spaces when the vehicle operator and/or passenger displays their current disabled license plates and/or a disabled persons placard.

Any challenge or dispute of facility visiting rules and regulations will be directed to the immediate attention of the custody sergeant.

Dress Code

Visitors shall remain fully clothed at all times while in the facility.

Appropriate attire includes undergarments; a dress or blouse/shirt with skirt/pants or shorts; and shoes or sandals.

Prohibited attire consists of:

  • Clothing that resembles county-issued inmate clothing;
  • Clothing that resembles law enforcement or military-type clothing, including rain gear;
  • Clothing that resembles any uniform worn by any department in CSB.
  • Clothing or garments that:
    • Expose the breast/chest area, genitals or buttocks;
    • By design, the manner worn, or due to the absence of, excessively allows the anatomical detail of body parts or midriff to be clearly viewed;
    • Are sheer, transparent or excessively tight;
    • Expose more than two inches above the knee, including slits when standing.

Undergarments shall be worn beneath translucent clothing, under all circumstances.

No clothing or accessories displaying obscene or offensive language, drawings or objects.

No gang related clothing, style of dress or items containing gang related symbols or markings.

No head coverings (except clear, see-through rain gear), and readily removable wigs or hairpieces. The facility commander, or designee, may grant an exception for a visitor to wear gloves, head coverings, and/or readily removable hair pieces or wigs, based upon verification of need. Written approval shall be required prior to visiting and subject to staff inspection during any visit.

No gloves or scarves

No coats or jackets

No bathing suits

No overalls or coveralls

No exaggerated hairstyles

Visitors with Disabilities

Reasonable accommodations shall be afforded visitors and inmates with disabilities to facilitate their participation in the various visiting programs offered by the Office of the Sheriff.

Visitors with service animals will be allowed access to the facility and will not be denied the use of their service animal.

Visitors may be required to state the purpose of the service animal.

Any conflict regarding whether an animal is a service animal shall be resolved by the Facility Commander or his/her designee.

Visitors with disabilities, who require assistance, will be escorted to the proper visiting area. Wheelchair bound visitors will receive priority consideration for the use of the non-contact lobby visiting rooms designated and identified for this purpose.

Visitor Registration

All visitors shall arrive 30 minutes prior to their scheduled visit time.

Each adult visitor will complete a visitors form before approaching the Visitor Registration Desk. The registration must be complete, legible and include the following:

  • Visitor’s name
  • Visitor’s address
  • Visitor’s date of birth
  • Driver’s license number
  • Inmate name and Booking Number
  • Visitor’s relationship to inmate

Visitors will approach the Visitor Registration Desk with their completed visitor form and acceptable photo identification. The following are acceptable forms of photo identification:

  • Driver’s license with photo
  • Department of Motor Vehicles identification card with photo.
  • Picture passport
  • Armed forces identification card with photo
  • Picture identification cards issued by the United States Department of Justice.
  • Picture identification cards issued by any foreign government agency that also includes physical descriptors and birth date.
  • Parents and/or guardians of minor children will be required to provide a birth certificate or proof of guardianship of minor children during processing of the initial visit.
    • Upon receipt, the Visiting Aide will note the documentation of the birth certificate in the inmate’s visiting file and return the original documents to the visitor.
    • The inmate will be responsible for advising the parent or guardian of this requirement prior to requesting the visit.

Visitors will return to the waiting area until called by the Visitor Registration Desk.

Visitor Clearance

The facility representative managing visiting will:

  • Verify that there is a scheduled visit between the visitor and the inmate. If no visit has been scheduled, the visitor will be told so as soon as possible and asked to leave the facility.
  • Verify that the visitor is on the inmate's visiting list.
  • Conduct a records check on the visitor.

The Facility Commander has the authority to approve or disapprove prospective visitors. The following are reasons for denying a prospective visitor:

  • The prospective visitor has outstanding arrests/warrants including a Department of Motor Vehicles Failure to Appear notice with no disposition from the court.
  • Prospective visitors who have served any amount of time in a state or federal prison may not visit without the prior written approval of the Facility Commander. Facility Commanders will deny prospective visitors who have any one conviction of the following types of offenses:
    • Distributing a controlled substance into or out of a state prison, correctional institution/facility or jail.
    • Transporting contraband (weapons, alcohol, escape and drug paraphernalia, etc.) in or out of a state prison, correctional institution/facility or jail.
    • Aiding or attempting to aid in an escape or attempted escape from a state prison, correctional institution/facility or jail.
  • Visitors who have been confined in any Contra Costa County Detention Facility during the past six months will not be permitted to visit.
  • The prospective visitor is a co-offender of the incarcerated inmate.
  • The prospective visitor is a supervised parolee, probationer, or on civil addict outpatient status and has not received written permission of his or her case supervisor and the prior approval of the Facility Commander.
  • The identity of the prospective visitor or any information on the visiting questionnaire is omitted or falsified.

Once the visitor has been cleared, the facility person managing visiting will contact the module where the inmate is housed. The module deputy will be told of the visit and asked to have the inmate ready for the visit.

Visits will then be logged using the JMS System.

Once cleared to conduct the visit, at the approved visit time, the visitor will be recalled to the Visiting Desk for entrance to the facility.
Visitor Screening

Visitors shall be required to submit to contraband and/or metal detection device(s), and a thorough search of all personal items, including inspection of a wheelchair, implant, prosthesis or assistive device, prior to being allowed entry to visiting.

Visitors who refuse to submit to contraband screening will be denied entry.

Visitors who appear to be under the influence of a controlled substance, intoxicated or otherwise impaired who present a risk to facility security will be denied entry.

Visitors who are not appropriately dressed will be denied entry.

Visitors under the age of 18 who are not accompanied by a parent or legal guardian will be denied entry.

Visitor Departure

Visitors will check-out with the Visiting Desk as they depart the facility.

All visitors will be logged out from their visit as they depart the facility.

Ask The Inmate

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