Inmate Search
Maricopa County AZ Inmate Search is used to locate people currently held in the Maricopa County jail system and to review available custody information maintained by the Maricopa County Sheriff’s Office. This article explains the official inmate search methods, the identifying information that produces the best results, the difference between booking and name searches, how jail intake and release work, what public mugshot information can show, and how families can use an inmate’s booking information for mail, property, bonds, and other jail-related matters.
Official Inmate Search System
The Maricopa County Sheriff’s Office, commonly abbreviated MCSO, operates the county jail system and provides the official online inmate information service. MCSO is also the primary booking facility in Maricopa County, and its Custody Bureau assists numerous law enforcement agencies with booking people into custody.
The most direct place to begin is the Sheriff’s Office Inmate Search by booking number. A booking number is a particularly useful identifier because it points directly to the inmate information associated with that booking rather than requiring a search through people with similar names.
MCSO also provides a dedicated Inmate Information page. The page supports two search approaches: entering a booking number or entering identifying information consisting of the person’s last name, first name, and date of birth.
The system reports the number of people currently in custody when the page is viewed. That number changes as bookings, transfers, and releases occur, so it should be treated as a current system figure rather than a fixed jail population.
Booking Number Searches
If the inmate’s booking number is already known, searching by that number is the simplest method supported by MCSO. The official search page provides a field specifically for the inmate booking number and directs the user to the corresponding inmate information.
A booking number should not be confused with a court case number or another identifier associated with a criminal case. The MCSO inmate system specifically asks for the booking number assigned through the jail booking process. Using an unrelated number may produce no useful result.
Booking numbers become particularly useful after an inmate has been located because MCSO also requires that number for certain jail communications. For example, inmate mail must include both the inmate’s full name and booking number. Photographs sent by mail must also have the inmate’s name and booking number written on the back of each photograph.
For that reason, someone helping an incarcerated family member may want to keep the correct booking number available after completing the initial search. Reusing the same identifier can reduce confusion when dealing with jail mail or asking MCSO about the person in custody.
Name and Birth Date Search
When the booking number is unknown, MCSO provides a separate inmate search by name. This method requires three pieces of information:
Last name
First name
Date of birth in YYYYMMDD format
The date format matters. A birth date must be entered as the four-digit year, two-digit month, and two-digit day without changing the required order. Using the correct full name and date of birth helps distinguish between people who have the same or similar names.
If a search does not produce the expected person, recheck the spelling of the first and last names and verify the date of birth before assuming the person is not in MCSO custody. A booking record may also contain identifying information supplied during the booking process, and MCSO warns that people may use false identification information.
Limits of Online Inmate Data
MCSO places an explicit warning on its inmate information service. The Sheriff’s Office states that the information should not be relied upon for legal action and cannot be represented as current, accurate, or complete. It also warns that individuals may provide false identification information and that a person’s true identity can only be confirmed through fingerprint comparison.
This limitation matters when two records appear similar or when a search result does not match what a family member expected. A matching name and birth date can help locate a record, but the public-facing system should not be treated as definitive proof of identity.
The same caution applies to custody status. Jail records can change as people are booked, transferred among MCSO facilities, released, or moved to another agency. Someone using the inmate search for practical matters should rely on the current information displayed by MCSO and, when necessary, use the Sheriff’s Office jail information service for further assistance.
Custody and Booking Responsibility
The MCSO Custody Bureau is responsible for maintaining safety and security within the county detention facilities. Detention deputies provide daily necessities to people awaiting court proceedings and to people who remain in county custody after sentencing.
MCSO states that it is the primary booking facility in Maricopa County. Its Intake Division assists numerous law enforcement agencies with inmate bookings. This explains why an inmate record may identify an arresting agency other than the Sheriff’s Office even though the person is held within the MCSO jail system.
For example, a person may have been arrested by a municipal police department, a state law enforcement agency, or another participating agency before being processed into county custody. Questions about the initial arrest should be directed to the arresting agency rather than assuming MCSO made the arrest.
Intake, Transfer, and Release
MCSO processes police-custody bookings through the Intake, Transfer and Release facility, commonly referred to as ITR. The facility handles intake and booking activity and also processes court-ordered self-surrenders.
All releases from MCSO custody are processed through ITR. Once an inmate is released, the person is directed to the designated public parking area for pickup. Inmates have access to a telephone to place collect calls and may use that access to notify someone of a pending release.
People waiting for a release should understand that a release does not necessarily occur immediately after a court action or payment. MCSO states that after a bond is paid, release processing may take up to 24 hours. An immigration hold or another law enforcement hold can also prevent release even after the bond has been paid.
The Sheriff’s Office specifically directs members of the public seeking updated inmate information back to the online inmate information service. That makes the official search an appropriate place to recheck the person’s status rather than relying on an earlier result.
Jail Locations and Transfers
The MCSO jail system includes several detention facilities with different inmate classifications and operational roles. The Sheriff’s Office jail facilities page identifies Fourth Avenue Jail, Towers Jail, Watkins Jail, Estrella Jail, Lower Buckeye Jail, the Intake Transfer and Release facility, and the associated 512 Facility.
Housing location may differ depending on an inmate’s classification, custody needs, sex, sentence status, medical needs, or the stage of the intake process. For example, Estrella Jail houses female inmates across multiple classifications, while Towers Jail is identified as a male medium-security general-population facility. Watkins Jail houses male medium- and minimum-security general-population inmates.
Lower Buckeye Jail includes multiple classifications and also contains medical and mental health housing. The 512 Facility serves as temporary holding space associated with the intake process. Because MCSO operates a multi-facility system, a person should not assume that the location associated with intake will remain the person’s housing location throughout custody.
Why Housing Can Change
ITR coordinates movement into and out of custody and includes a transportation hub for moving defendants through the Sheriff’s Office jail system. MCSO also operates transportation services between jails, courts, and other locations throughout Arizona.
As a result, an inmate’s current facility may change after initial booking. When location matters for a jail-related task, users should work from the latest MCSO custody information rather than an earlier assumption about where the person was originally processed.
Public Mugshot Information
MCSO maintains a separate Public Mugshots page for people shown in current custody information. The page can display a photograph along with the booking number, first and last name, listed charges, and arresting agency.
The mugshot page and inmate search serve related but different purposes. The inmate information search is designed to locate an inmate record using a booking number or identifying information. The public mugshot page presents a custody list containing photographs and selected booking-related fields.
MCSO states on the mugshot page that all individuals are innocent until proven guilty. A listed charge describes the booking information shown by the Sheriff’s Office; it is not the same as a finding of guilt.
Inmate Information for Families
Once a person has been identified through inmate search, family members may need the booking information for other jail procedures. The Sheriff’s Office provides detailed information for families covering property, money, intake and release, bonds, visitation, mail, medication, and related custody matters.
These procedures are separate from simply finding an inmate. Locating the correct record first can prevent mistakes later, especially where a booking number is required.
Property and Money Releases
An inmate requesting a property release must release all booked-in personal property except clothing. The inmate may release the property to a person of the inmate’s choosing. MCSO states that the inmate provides the pickup location.
The person picking up property must present a current and valid government-issued picture ID. Examples given by MCSO include a Department of Motor Vehicles identification card or driver’s license. The Sheriff’s Office does not accept informal picture identification such as store membership cards as valid identification for this purpose.
Money in an inmate account may be released without approval for up to 72 hours after booking. Requests made after 72 hours in custody require approval from the Jail Commander or a designee.
Bonds and Release Status
Bonds and fines may be paid at the Fourth Avenue Jail Bond and Fine room. Before paying a bond, a person who does not know the booking number can provide the inmate’s full name and date of birth when contacting Sheriff’s Information Management Services.
MCSO warns that accepted bond payments are not refunded. The Sheriff’s Office also accepts only the exact amount of the bond or fine. Supported payment methods include U.S. currency, a cashier’s check subject to verification, a U.S. Postal Money Order, a Western Union Money Order, and accepted credit cards. Credit-card transactions carry a processing fee and must be below the stated transaction limit described by MCSO.
Paying a bond does not guarantee immediate release. A separate immigration or law-enforcement hold can keep the inmate in custody, and the release process after bond payment may take up to 24 hours.
Mail Requires Booking Information
All incoming inmate mail is processed through the central mailroom at Lower Buckeye Jail regardless of the jail where the inmate is housed. The address must contain the inmate’s full name and booking number.
For regular incoming correspondence, MCSO requires standard postcards except for legal mail. Acceptable postcards must meet the Sheriff’s Office size and content rules and be written in blue or black ink. Items with prohibited markings, stickers, contamination, inappropriate content, or other disallowed features can be rejected.
Books and Publications
Books and subscription publications must be purchased directly through a publisher. Books must be softback paper, and shipments must include a manifest or invoice. MCSO limits the number of books, magazines, and newspapers an inmate may possess at one time and prohibits publications that may threaten jail safety or security or that are pornographic in nature.
Photograph Requirements
Up to five photographs may be mailed at one time in an envelope clearly marked “PHOTOGRAPHS.” The envelope may contain only the photographs. Each photograph must be no larger than 4 by 6 inches, and the inmate’s name and booking number must appear on the back.
This is another reason to confirm the correct inmate and booking number before sending materials. Using incomplete or incorrect inmate identification may interfere with proper handling of the mail.
Remote Video Visitation
MCSO states that non-legal inmate visitation is conducted through remote video visitation. On-site visitation is not available. Remote visits may occur between 7:00 a.m. and 9:30 p.m. daily, and each session lasts 30 minutes.
Members of the public, family, and friends must create an account through the visitation service identified by MCSO, and at-home visitors pay a fee for this type of visit. The Sheriff’s Office also has a process for appealing certain temporary video-visitation account suspensions. Appeals must be submitted within 14 days of the suspension, and only one appeal may be submitted for each suspension by the affected account holder.
Common Inmate Search Mistakes
Most problems with an inmate lookup come from using the wrong identifier, entering incomplete information, or treating an old result as current. Several simple distinctions help avoid those problems.
Do not substitute a court case number for a booking number. The MCSO inmate search specifically requests the inmate’s booking number.
Use the required birth-date format. Name searches require the date of birth in YYYYMMDD format.
Verify spelling. A misspelled first or last name can prevent the expected record from appearing.
Do not assume the arresting agency is MCSO. The Sheriff’s Office books inmates arrested by numerous law enforcement agencies.
Do not assume the intake location is the final housing location. Inmates can be assigned or transferred within the county jail system.
Recheck custody status when timing matters. Bookings, transfers, holds, bond processing, and releases can change an inmate’s status.
Treat public information as informational. MCSO warns that online inmate information may not be current, accurate, or complete and should not be relied upon for legal action.
When Jail Information Is Needed
An online search is generally the first step when the goal is to determine whether a person appears in MCSO custody or to obtain a booking number. Some matters require additional jail information, particularly bond questions, release processing, or questions involving the person’s current custody situation.
The official Sheriff’s Office contact page identifies a Jail Information Line as well as other MCSO contact channels. For questions about an initial arrest, however, MCSO directs the public to the arresting agency. Keeping those responsibilities separate can prevent unnecessary calls to the wrong office.
For an emergency or crime in progress, the Sheriff’s Office directs the public to 9-1-1. An inmate lookup, release-status inquiry, or other routine jail-information request is not the same as an emergency report.
Relevant Departments and Facilities
Maricopa County Sheriff’s Office Headquarters
550 W. Jackson Street, Phoenix, AZ 85003
602-876-1000
Fourth Avenue Jail
201 South 4th Avenue, Phoenix, AZ 85003
602-876-0322
Towers Jail
3127 West Gibson Lane, Phoenix, AZ 85009
602-876-0322
Watkins Jail
2680 South 28th Drive, Phoenix, AZ 85009
602-876-0322
Estrella Jail
2939 West Durango St, Phoenix, AZ 85009
602-876-0322
Lower Buckeye Jail
3250 West Lower Buckeye Road, Phoenix, AZ 85009
602-876-0322
Intake Transfer and Release (ITR)
2670 South 28th Drive, Phoenix, AZ 85009
602-876-0322
512 Facility
2670 South 28th Drive, Phoenix, AZ 85009
602-876-0322
Transportation HUB
2670 South 28th Drive, Phoenix, AZ 85009
602-876-0322
Inmate Search FAQs
Why is someone listed at the 512 Facility after booking?
The 512 Facility is a temporary holding facility connected to the Intake, Transfer and Release operation. According to the Maricopa County Sheriff’s Office, it is designed for short stays of generally 72 hours or less, although a stay can extend to five days. It serves as a buffer between intake and the county’s other jail facilities while housing arrangements and other processing are completed. The Sheriff’s Office provides additional details about this facility on its official Maricopa County jail facilities page.
What happens if an inmate needs prescription medication?
An arrested person who takes prescription medication should tell medical staff during the initial booking process what medications they use and the prescribed dosages. The Sheriff’s Office states that medication brought from home or purchased outside the jail will not be accepted for the inmate to consume. Jail medical staff instead arrange for required medication through the facility’s medical pharmacy. This makes it important for the inmate to accurately report medications taken on a daily basis.
Can prescription eyeglasses be brought to someone in jail?
An inmate who was booked without prescription eyeglasses must submit an inmate request asking for permission to have the glasses brought from home. Approval may come from the Jail Commander or medical staff. The Sheriff’s Office specifies that only plastic-frame glasses are allowed, and tinted lenses are not accepted unless medically approved. Glasses with broken frames or lenses are also prohibited.
Can an inmate get married while in Maricopa County custody?
The Sheriff’s Office allows for marriage-related arrangements, but the process requires advance planning. Its official information for inmate families states that the jail commander must be contacted at least 60 days before the planned marriage date. Families should account for that lead time before making arrangements connected with a marriage involving someone who remains in county custody.