Maricopa County Jail
Arizona
Maricopa County Sheriff's Office 4th Avenue Jail (Intake)
The Maricopa County Sheriff's Office runs the county jail system in Phoenix, and the 4th Avenue Jail handles intake and release.
- Address
- 201 S 4th Avenue, Phoenix, AZ 85003
- Phone
- (602) 876-1000
- Sheriff / jail site
- https://www.mcso.org/
Website screenshot
How to find an inmate
Use the inmate lookup on the Maricopa County Sheriff's Office website (mcso.org) to check whether someone is held in a Maricopa County jail, or call MCSO at (602) 876-1000 with the person's full name and date of birth. If the person has been sentenced to state prison, use the ADCRR inmate search.
Visitation
MCSO jails in Phoenix use scheduled visits, and the rules vary by facility. Check mcso.org or call MCSO to confirm how to register and schedule a visit at the specific jail where the person is housed.
Bail and bond
Bail is set by the court, usually at the initial appearance after booking at the 4th Avenue Jail. Check the MCSO website or call to confirm the bond amount, accepted payment methods, and where bonds can be posted.
Mail and money
Mail must follow MCSO jail mail rules and use the correct inmate name and booking number. Check mcso.org or call MCSO to confirm the current mailing address and the approved methods for depositing money to an inmate account.
Frequently asked questions
How do I find out if someone is in a Maricopa County jail?
Use the inmate lookup on mcso.org or call MCSO at (602) 876-1000 with the person's full name and date of birth.
What is the address of the 4th Avenue Jail?
201 S 4th Avenue, Phoenix, AZ 85003.
How do I post bail in Maricopa County?
The court sets bail. Check mcso.org or call MCSO to confirm the amount, the payment methods, and where to post it.
Can I send money to an inmate in a Maricopa County jail?
Yes. Confirm the current approved deposit methods on mcso.org or by calling MCSO.