Martinez Detention Facility

Search for an Inmate in Contra Costa County

Martinez Detention Facility Information

The Martinez Detention Facility is a 1500-bed jail located in Martinez, Contra Costa County, California. For inmate details, you can contact them 24/7 at 925-335-4600.

This facility processes offenders arrested for misdemeanors and felonies. They undergo booking and processing, and depending on their charges, may remain incarcerated until they are bonded out, released on their own recognizance, or held until their trial concludes.

Use the inmate search tool to see who is currently in custody.

Inmates serving less than one year will do their time at this jail, while those with longer sentences will be transferred to the California State Prison System or the Federal Bureau of Prisons.

This page provides information on the visitation schedule, funding an inmate's account, mailing them, receiving phone calls, voicemail, email and texting, tablet rentals, bail bond details, and commissary purchases.

It is useful to keep the inmate's jail ID or booking number for correspondence purposes. If it’s not available online, contact Martinez Detention Facility at 925-335-4600 for assistance.

Phone: 925-335-4600

Physical Address:
901 Court Street
Martinez, CA 94553

Mailing Address (personal mail):
Inmate Name – Booking Number
Martinez Detention Facility – 1117
PO Box 96777
Las Vegas, NV 89193

Mailing Address (legal mail or subscriptions):
Inmate Name – Booking Number
Martinez Detention Facility
901 Court Street
Martinez, CA 94553

Other Jails and Prisons

How Do You Find Someone in the Martinez Detention Facility?

To search for an inmate in the Martinez Detention Facility, review their criminal charges, the amount of their bond, when they can get visits, or even view their mugshot, go to the Official Jail Inmate Roster, or call the jail at 925-335-4600 for the information you are looking for. The Jail Roster Report also links to the county arrests for the day as well as the Incident Report, which details all the calls that Contra Costa Sheriff Deputies were called to, and what the outcome was. You can also look up a list of criminal courts for Contra Costa County and every other county in California.

Martinez Detention Facility Inmate Search

The Martinez Detention Facility maintains an average of 1500 offenders in custody on any given day. The Martinez Detention Facility has a monthly turnover of 40% of their inmate population, another 30% turnover every 90 days, another 20% every six months, and approximately 10% stay incarcerated between six and twelve months. Every year Contra Costa County law enforcement agencies arrest and detain approximately 65,600 offenders.

The following charts of Contra Costa County inmate population demographics are updated daily. The information shown is for today. For research purposes we have broken down the inmates by sex, age, ethnicity, and criminal charges.

The information is compiled from the Contra Costa County Corrections Department, the state of California Department of Corrections, as well as the United States Department of Justice and Census Bureau records. It represents every person in custody in Contra Costa County.

For complete information on how to get directions, bond, visit, mail, send and receive email and texts, receive phone calls, and send money or commissary to an inmate, find arrest information for Contra Costa County and other counties surrounding this one, scroll down this page. We have a section for each.

We also provide photos of the jail that we have collected over the years.

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About the Martinez Detention Facility

Since opening in 1981 the Martinez Detention Facility has been in continuous operation and houses maximum security inmates for Contra Costa County. It also functions as the main booking and intake facility for all arrests throughout the county, and then houses both those who are waiting for their trial and those who have been sentenced but require a more restrictive environment than other facilities.

Several organizations in the community offer classes and programs within the facility to assist the inmates in learning new skills, overcoming past trauma or improve decision making. Rehabilitative programming is in place to overcome addictions or substance use, along with education on the topics, learning new decision making processes, and developing coping strategies for use in the future. Counseling is available as part of the mental health support along with psychiatric services, medical services, dental care, and other services are provided for all inmates as needed.

Another form of support is in mail, calls, and visits with family and friends, which has been shown to both improve mental health and reduce recidivism by having a support system in place for after their release and reintegration into their community. Visiting hours occur on Monday, Tuesday, Wednesday, Saturday and Sunday from 8:30am-11am, 1pm-5pm, 7:30pm-9pm, on Thursday 8:30am-11am and 1pm-5pm, and Friday 7:30pm-9pm.

Mail for all of the facilities in the county are sent to the following address using the 4 digit code shown for the facility your inmate is in.  

Inmate Name – Booking Number 
Martinez Detention Facility – 1117 
West County Detention Facility - 1118 
Marsh Creek Detention Facility - 1119 
PO Box 96777 
Las Vegas, NV 89193 

Mail must have a return address, be no bigger than 4x9.5 inch for envelopes and regular letter size paper, and less than 10 photographs of 4x6 may be included.
For online options create and account at www.pigeonly.com.

The three adult jails in Contra Costa County are the Martinez Detention Facility, the West County Detention Facility, and the Marsh Creek Detention Facility.

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Recent Bookings & Arrests

The booking process explained for Martinez Detention Facility

Following an arrest, individuals are processed at Martinez Detention Facility. The booking process confirms identity, charges, and whether the individual will be released, granted bail, or held until court.

It is advisable to remain silent during booking, as anything said can be used against the individual later. Legal counsel should be consulted before any statements are made.

The booking steps at Martinez Detention Facility include:

  • Identification verification.
  • Taking mugshots.
  • Answering questions about health, criminal history, and gang affiliations.
  • Possible DNA sample collection.
  • A full-body search.
  • Confiscating personal items for safekeeping.
  • Providing a phone call.

Depending on circumstances, the booking process can take one hour or up to 48 hours. To inquire about posting bond for an arrestee, contact the facility at 925-335-4600.

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Directions / Map to the Martinez Detention Facility
Inmate Bail and Bonding

What are the bail options in Contra Costa County after an arrest?

Once arrested, an individual may be brought to Martinez Detention Facility in Martinez for processing. The next steps vary:

1. The individual may be released without paying bail and ordered to appear on a set date.
2. The individual could be held in jail until their hearing.
3. Posting bail or bond allows them to be released. Call 925-335-4600 to confirm the bail amount.

There are several ways to pay an individual’s bail.

  • Cash, credit, and money orders are accepted payment methods.
  • Licensed bail bond agencies in Contra Costa County can provide assistance.
  • County real estate may also be used as collateral for bail.

For more information about bail in Contra Costa County, California, see the Martinez Detention Facility Bail Guide.

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Inmate Visitation

How Do You Visit an Inmate in the Martinez Detention Facility? What is the Schedule?

Martinez Detention Facility INMATE VISITATION SCHEDULE & GUIDELINES

901 Court Street
Martinez, CA 94553

925-335-4600

  • Confirm that your inmate is in the jail and able to receive visits.
  • If possible, call 925-335-4600 at least 24 hours before the day you want to visit to schedule a visit, however you can schedule a visit same day, but it may take some time to process your request.
  • Up to three visitors may visit an inmate at one time, and all visitors must be scheduled and at the facility no later than 30 minutes prior to the end of any visiting block.
  • Each visit will be for 45 minutes.
  • Each inmate is allowed two visits per week. This is subject to change. 
  • Each adult visitor will complete a visitors form before registering for the visit.
  • 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
  • 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.
DAYS TIMES
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.
MONDAY 8:30 a.m. - 11:00 a.m.
1:00 p.m. - 5:00 p.m.
7:30 p.m. - 9:00 p.m.
TUESDAY 8:30 a.m. - 11:00 a.m.
1:00 p.m. - 5:00 p.m.
7:30 p.m. - 9:00 p.m.
WEDNESDAY 8:30 a.m. - 11:00 a.m.
1:00 p.m. - 5:00 p.m.
7:30 p.m. - 9:00 p.m.
THURSDAY 8:30 a.m. - 11:00 a.m.
1:00 p.m. - 5:00 p.m.
FRIDAY 7:30 p.m. - 9:00 p.m.
SATURDAY 8:30 a.m. - 11:00 a.m.
1:00 p.m. - 5:00 p.m.
7:30 p.m. - 9:00 p.m.

We’ve compiled a list of Frequently Asked Questions and Answers for everything you need to know about Martinez Detention Facility’s Inmate Visitation Policies, Rules and Guidelines. If you still have questions after reviewing these FAQs, call 925-335-4600 for further assistance.

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Remote Video Visitation

Can I Use My Computer or Phone to Have a Remote Video Visit with an Inmate in the Martinez Detention Facility?

Martinez Detention Facility INMATE VISITATION SCHEDULE & GUIDELINES

901 Court Street
Martinez, CA 94553

925-335-4600

  • Confirm that your inmate is in the jail and able to receive visits.
  • If possible, call 925-335-4600 at least 24 hours before the day you want to visit to schedule a visit, however you can schedule a visit same day, but it may take some time to process your request.
  • Up to three visitors may visit an inmate at one time, and all visitors must be scheduled and at the facility no later than 30 minutes prior to the end of any visiting block.
  • Each visit will be for 45 minutes.
  • Each inmate is allowed two visits per week. This is subject to change. 
  • Each adult visitor will complete a visitors form before registering for the visit.
  • 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
  • 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.
DAYS TIMES
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.
MONDAY 8:30 a.m. - 11:00 a.m.
1:00 p.m. - 5:00 p.m.
7:30 p.m. - 9:00 p.m.
TUESDAY 8:30 a.m. - 11:00 a.m.
1:00 p.m. - 5:00 p.m.
7:30 p.m. - 9:00 p.m.
WEDNESDAY 8:30 a.m. - 11:00 a.m.
1:00 p.m. - 5:00 p.m.
7:30 p.m. - 9:00 p.m.
THURSDAY 8:30 a.m. - 11:00 a.m.
1:00 p.m. - 5:00 p.m.
FRIDAY 7:30 p.m. - 9:00 p.m.
SATURDAY 8:30 a.m. - 11:00 a.m.
1:00 p.m. - 5:00 p.m.
7:30 p.m. - 9:00 p.m.

We’ve compiled a list of Frequently Asked Questions and Answers for everything you need to know about Martinez Detention Facility’s Video Remote Visitation Policies, Rules and Guidelines. If you still have questions after reviewing these FAQs, call 925-335-4600 for further assistance.

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Inmate Money Accounts

How Do You Deposit Money for an Inmate in the Martinez Detention Facility?

There are multiple ways to add money to an inmate's account at Martinez Detention Facility, using Access Corrections Secure Deposits

1. Online - Making a deposit using a verified Visa or Mastercard online, or using their Apple or Android App.
2. By phone - Dial 866.345.1884 to reach their 24/7 Access Corrections domestic call centers.
3. Jail Lobby Kiosk - Kiosks accept cash, credit cards, and debit cards.
4. Mail-in Lockbox - Friends or Family who do not have a credit or debit card can mail money orders to their secure lockbox to make deposits to an inmate’s account. Depositors use a customized form that captures all needed information. Upon receipt, they process and post the deposits to the inmate's trust fund in approximately 48 hours.

Money orders may be mailed to inmates at:
Access Corrections
P.O. Box 12486
St. Louis, MO 63132

Money orders must be made out to "Access Secure Deposits".
Include the state, city, inmate name and ID number on all money orders.

5. Walk-in Cash Deposits - Go to any Cash Pay Today location to deposit cash to your inmate's account.

Secure Deposits - Frequently Asked Questions
Secure Deposits - Video Tutorial on How it Works
Secure Deposits - Help Pages

Customer Service Contacts:
Phone: 866-345-1884
Emailcustomerservice@accesscorrections.com
Online Chat - Look for 'bubble' on bottom right of the page linked here.

How to Send Money to an Inmate in Contra Costa County

To send commissary money to an inmate in Martinez Detention Facility follow these steps:

  • Register with Access Corrections by creating an account.
  • Select California, then select Martinez Detention Facility, and then the inmate you want to send money to.
  • Choose the amount of money you want to send, and input your payment method.

For all information on how to Send Money to an inmate's account check out our full money and commissary guide for Martinez Detention Facility.

We’ve compiled a list of Frequently Asked Questions and Answers for everything you need to know about Martinez Detention Facility’s Inmate Money and Trust Fund Policies, Rules and Guidelines. If you still have questions after reviewing these FAQs, call 925-335-4600 for further assistance.

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Inmate Phone Contact

How Do I Receive Phone Calls from an Inmate in the Martinez Detention Facility?

How Do You Communicate with an Inmate in the Martinez Detention Facility by Phone

Follow these instructions on how to open an account with GTL Connect Network (aka Viapath Technologies)

  • Advance Pay - This phone account allows you to prepay so that your inmate can call you (and only you) whenever he/she wants and the cost of each call is deducted from your balance. You can even be notified by text when your balance gets low. You still have the option of accepting or rejecting each call.
  • Pin Debit  -  This option allows you to fund an inmate's commissary account and lets him pay for phone calls to you and others with the money. You will have no control over who your inmate calls.
  • Voicemail  -  You can leave a secure voicemail without having to contact the facility. When you call the local phone number for a facility offering Inmate Voicemail (call Customer Service at 877-650-4249 to get the local voicemail number for Martinez Detention Facility, you will be informed of the cost for leaving a message. To leave your message, simply select the inmate by ID number. Then, record your voicemail.

For full instructions on the Martinez Detention Facility Inmate Phone System, what the costs are, how it works, and tips and guidelines on rules, regulations and saving money on calls, check out our Inmate Phones Page.

We’ve compiled a list of Frequently Asked Questions and Answers for everything you need to know about Martinez Detention Facility’s Inmate Phone Policies, Rules and Guidelines. If you still have questions after reviewing these FAQs, call 925-335-4600 for further assistance.

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Mailing an Inmate

How do I Mail an Inmate in the Martinez Detention Facility, and what can I send them?

Martinez Detention Facility Inmate Mail Guidelines

Postcards
The Martinez Detention Facility allows inmates to receive pre-metered postcards like the type purchased from the post office. They may also allow certain photo postcards as long as they have not been tampered with or contain images that may be considered to be obscene or violent in nature. It is best to only use blue or black ink. Always include your name and return address.

Envelopes
The Martinez Detention Facility also allows envelopes to be mailed to inmates. It is best to only use blue or black ink.

Postcards and envelopes MUST HAVE the sender's full name and return address on the envelope. 

Postcards and envelopes MUST be mailed to the following address:
Inmate Name – Booking Number
Martinez Detention Facility – 1117
PO Box 96777
Las Vegas, NV 89193



Legal Mail

Send all Legal Mail to this Address:
Inmate Name – Booking Number
Martinez Detention Facility
901 Court Street
Martinez, CA 94553



Newspapers
Local or national newspapers may also be mailed to the inmate as long as they are mailed directly from the newspaper publisher.

Magazines
News, special interest or sports magazines may also be mailed to an inmate as long as they are shipped directly from the publisher. Any magazines that contain profanity, weapons, pornography or other content that is adult in nature will be confiscated by the jail staff and will NOT be delivered to the inmate.

Books
The Martinez Detention Facility allows books to be mailed directly to the jail from a reputable source such as AmazonBarnes & Noble or Books-A-Million. You can order them directly from your computer and have them shipped to the inmate at the address below.
Books must NOT contain images or content that are considered excessively violent, pornographic or obscene. Any book that does not meet the Martinez Detention Facility standards will be disposed of. No more than three books may be shipped at any one time.
Hard cover books will not be accepted by the jail due to their potential to be used as a weapon.


All newspapers, magazines and books are to be shipped to:
Inmate Name – Booking Number
Martinez Detention Facility
901 Court Street
Martinez, CA 94553

Martinez Detention Facility Inmate Mail Guidelines

Postcards
The Martinez Detention Facility allows inmates to receive pre-metered postcards like the type purchased from the post office. They may also allow certain photo postcards as long as they have not been tampered with or contain images that may be considered to be obscene or violent in nature.

Envelopes
The Martinez Detention Facility also allows envelopes to be mailed to inmates.

Postcards and envelopes MUST be mailed to the following address:
Inmate Name – Booking Number
Martinez Detention Facility – 1117
PO Box 96777
Las Vegas, NV 89193



Legal Mail

Send all legal Mail to this Address:
Inmate Name – Booking Number
Martinez Detention Facility
901 Court Street
Martinez, CA 94553



Newspapers
Local or national newspapers may also be mailed to the inmate as long as they are mailed directly from the newspaper publisher.

Magazines
News, special interest or sports magazines may also be mailed to an inmate as long as they are shipped directly from the publisher. Any magazines that contain profanity, weapons, pornography or other content that is adult in nature will be confiscated by the jail staff and will NOT be delivered to the inmate.

Books
The Martinez Detention Facility allows books to be mailed directly to the jail from a reputable source such as AmazonBarnes & Noble or Books-A-Million. You can order them directly from your computer and have them shipped to the inmate at the address below.
Books must NOT contain images or content that are considered excessively violent, pornographic or obscene. Any book that does not meet the Martinez Detention Facility standards will be disposed of. No more than three books may be shipped at any one time.
Hard cover books will not be accepted by the jail due to their potential to be used as a weapon.


All newspapers, magazines and books are to be shipped to:
Inmate Name – Booking Number
Martinez Detention Facility
901 Court Street
Martinez, CA 94553

We’ve compiled a list of Frequently Asked Questions and Answers for everything you need to know about Martinez Detention Facility’s Inmate Mail Policies, Rules and Guidelines. If you still have questions after reviewing these FAQs, call 925-335-4600 for further assistance.

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Inmate Commissary

Can I purchase Commissary Online for an Inmate in the Martinez Detention Facility, and what can I purchase?

Martinez Detention Facility contracts with Access Securepak (aka MyCarePak) for families to send pre-determined packages of commissary items to your inmate.

Access Securepak carries over 1,000 different items in the following categories:
- Food and Snacks
- Personal Hygiene Products
- Electronics
- Apparel

Registration Process:
1. Register here.
2. Select California.
3. Select Martinez Detention Facility.
4. Find your Inmate.
5. Deposit Funds.
6. Order Commissary Items.
Once you are logged in, you will receive instructions on how much (and what products) you can send your inmate.
Contact Information:
* If you have any questions, you can call Access Securepak at 800-546-6283.
* You can email My Care Pack at customerservice@securepak.net.
* You can write them at:
    Access Securepak
    10880 Linpage Place
    St. Louis, MO 63132

* You can Live Chat with a Representative online: (bottom left corner of page)
   Monday-Friday, 7:30 a.m.–11 p.m. CST, 
   and Saturdays, 10 a.m.–4 p.m. CST.

*Note* Access Securepak will issue a refund for or replace broken, damaged, or missing products reported by Martinez Detention Facility staff. They will not honor reports of discrepancies from inmate's families or friends.
My CarePack is the Martinez Detention Facility's outside vendor for Commissary Items. They have a very good mix of Chips, Snacks, Candy, Meat, Seafood, Hygiene products, Letter writing materials, Electronics and Apparel items for sale on their website.


*NOTE* -- Once you are fully registered and have selected the inmate you wish to send commissary to, you will receive instructions on how much you can deposit, how much (and what) you can purchase for your inmate, and how often you can send commissary.

How to Send Money to an Inmate in Contra Costa County

To send commissary money to an inmate in Martinez Detention Facility follow these steps:

  • Register with Access Corrections by creating an account.
  • Select California, then select Martinez Detention Facility, and then the inmate you want to send money to.
  • Choose the amount of money you want to send, and input your payment method.

For all information on how to Send Money to an inmate's account check out our full money and commissary guide for Martinez Detention Facility.

We’ve compiled a list of Frequently Asked Questions and Answers for everything you need to know about Martinez Detention Facility’s Commissary Policies, Rules and Guidelines. If you still have questions after reviewing these FAQs, call 925-335-4600 for further assistance.

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Texting and Emailing an Inmate

How Can I Communicate with an Inmate in the Martinez Detention Facility using an Online Messaging Service?

Martinez Detention Facility Digital Mail Instructions

When you send mail to an inmate in Martinez Detention Facility (see mailing address below), it gets sent to a third party service that takes the content and scans it, then forwarded to the jail to be printed out and given to the inmate.

Inmate Name – Booking Number
Martinez Detention Facility – 1117
PO Box 96777
Las Vegas, NV 89193

Martinez Detention Facility is using this service because all too often, inmates were receiving letters soaked in illegal liquid drugs.

The service, called Pigeonly, accepts non-privileged (legal) mail.

Pigeonly will also process the following non-privileged (personal) mail:

  • Letters (including drawings)
  • Greeting Cards
  • Postcards
  • 4x6 Photos (limit of up to 10 per parcel)
  • Unbound Newsletters

As an additional service Pigeonly offers a service where you don't even have to use the USPS to send the inmate mail, but can send your letters and photos directly from your phone or computer. There are several plans; monthly and annual, that come with a fee, but save you the trouble of dealing with writing and mailing letters the old school way.

For mailing, emailing and texting an Inmate in the Martinez Detention Facility use Pigeonly

Pigeonly allows you to physically or digitally send an inmate:

  • Letters (including drawings)
  • Greeting Cards
  • Postcards
  • 4x6 Photos (limit of up to 10 per parcel)
  • Unbound Newsletters

Pigeonly offers a service where you don't even have to use the USPS to send the inmate mail, but can send your letters and photos directly from your phone or computer. There are several plans; monthly and annual, that come with a fee, but save you the trouble of dealing with writing and mailing letters the old school way.

{facility_name-1} will either print them out for your inmate or put them on a terminal in their unit to see and read them.

For complete information on using pigeonly to mail letters, email letters, cards, photos, articles, as well as find out pricing plans, check out our Inmate Email page or Inmate Mail page.

We’ve compiled a list of Frequently Asked Questions and Answers for everything you need to know about Martinez Detention Facility’s Text and Email Policies, Rules and Guidelines. If you still have questions after reviewing these FAQs, call 925-335-4600 for further assistance.

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Inmate Tablets

Do Inmates in the Martinez Detention Facility have Access to Tablets or Computers?

We’ve compiled a list of Frequently Asked Questions and Answers for everything you need to know about Martinez Detention Facility’s Tablet Policies, Rules and Guidelines. If you still have questions after reviewing these FAQs, call 925-335-4600 for further assistance.

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Are there photos of the Martinez Detention Facility? What does it look like?
Other Jails in Contra Costa County

What are the other City and County Jails in Contra Costa County?

Contra Costa County County Jails
Contra Costa County City Jails
Contra Costa County Juvenile Facilities
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Other Jails Nearby

What are the other Jails in the Neighboring Counties surrounding Contra Costa County?

Contra Costa Alameda San Joaquin Sacramento Solano
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Search for an Inmate in Contra Costa County

This facility, known as "Martinez Detention Facility" is also known as Contra Costa County Jail - Martinez Detention Facility, Contra Costa County Criminal Court, Contra Costa County Sheriff, Contra Costa County Jail, Martinez Detention, Contra Costa County Jail, Martinez Detention, California, Contra Costa.