657-390-1330

Southwest Detention Center Inmate Search

Murrieta · Riverside County

657-390-1330
  • All 14 local jails San Bernardino, Riverside, Orange and LA County facilities.
  • A real person calls back We confirm the details with you by phone.
  • Confidential Your details are never shared without your consent.
  • Open 7 days a week Send a request any time, day or night.
  • Address 30755-B Auld Rd, Murrieta, CA 92563
  • Facility type Type II county jail
  • Operated by Riverside County Sheriff’s Office

About Southwest Detention Center

Also known as: Cois M. Byrd Detention Center (official name since 2017)

The jail many people still call Southwest Detention Center is officially the Cois M. Byrd Detention Center, named for a former Riverside County sheriff. It sits on Auld Road in the French Valley area between Murrieta and Temecula, and has served southwest Riverside County since it opened in 1993.

Because the facility changed names, you will see both on court paperwork, maps and older listings. They are the same building, run by the Riverside County Sheriff’s Office.

Visiting hours & rules

Book visits by calling (951) 696-3470 between 9 a.m. and 5 p.m., at least one day ahead. Morning, afternoon and evening slots are assigned by housing unit.

  • Call the visiting line to book, at least one day ahead
  • Bring a valid picture ID — any government ID card is accepted
  • Visitors under 18 must be with a parent or legal guardian
  • No gang, lewd or offensive clothing; hemlines no more than two inches above the knee
  • Up to two visitors per visit, and two visits per person each week
  • Visitors can be searched; no cameras, weapons, food or drink in the lobby

Before you go: Slots are assigned by housing unit and day. Ask for the person’s unit schedule when you call (951) 696-3470. Public parking is in front of the jail.

Booking & release

  1. Arrest & booking Southwest county arrests are booked here: photos, fingerprints, personal details and property.
  2. Classification Screening decides housing — at Byrd or another Riverside County jail.
  3. Custody People stay in custody here while their case moves through the Riverside County courts.
  4. Property pickup Property services run Monday to Friday, 7 a.m. to 4 p.m., at the jail lobby, after the person signs a withdrawal slip.

Mail & phone calls

Sending mail

Letters: [Name], [Booking number]Jailhouse Mail ATTN Riverside County370 S 500 E #201, Clearfield, UT 84015Books & legal mail: Cois M. Byrd Detention Center, 30755-B Auld Rd, Murrieta, CA 92563

Riverside County scans all personal letters: send them to Jailhouse Mail, not the jail. Books, periodicals, money orders and legal mail go directly to the facility. Every item needs the person’s full name and booking number.

Phone calls

People in custody cannot take incoming calls from the public. They can call out to family; ask the facility at (951) 696-3050 how to receive calls.

Need to reach someone fast? Call us at 657-390-1330 — we’ll confirm where they are.

Inmate search

How to find someone at Southwest Detention Center

Search under either name — we know Southwest and Cois M. Byrd are the same jail. Send the person’s full name and we’ll call you back with their booking details.

Start an inmate search or call 657-390-1330

Southwest Detention Center questions

Is Southwest Detention Center the same as Cois M. Byrd Detention Center?

Yes. The Murrieta jail was renamed in 2017 in honor of former Riverside County Sheriff Cois M. Byrd. It is the same facility.

What is the address of Southwest Detention Center?

It is at 30755-B Auld Rd, Murrieta, CA 92563. The main line is (951) 696-3050 and the visiting line is (951) 696-3470.

How do I book a visit at the Murrieta jail?

Call (951) 696-3470 between 9 a.m. and 5 p.m., at least one day ahead. Each person can have two visits a week, with up to two visitors each time.

Can you check if someone from Temecula was booked here?

Yes. Send us their name with Riverside as the county of arrest and we’ll call you back with what the records show.