Sheriff Names New Riverside County Undersheriff

The following is a news release from the Riverside County Sheriff’s Department:

Sheriff Stan Sniff has appointed Assistant Sheriff Bill Di Yorio to the rank of Undersheriff today. Undersheriff Di Yorio will now serve as the Department’s Chief of Staff and second-in-command. The Riverside County Sheriff’s Department is one of the largest sheriff’s operations in California, with over 4,000 employees serving over 7,300 square miles. His appointment is effective August 7th.

Undersheriff Di Yorio has been with the Riverside County Sheriff’s Department for over 34 years. The appointment of Undersheriff Di Yorio fills a critical vacancy created by the retirement of Colleen Walker who served in that capacity the last 4 years.

Undersheriff Bill Di Yorio joined the Riverside County Sheriff’s Department in 1980 after completion of the Southern California Peace Officer’s Basic Training Academy. As a Deputy Sheriff and Investigator, he worked at the Lake Elsinore Station and served five years on the Department’s Emergency Response Team (SWAT). As a Sergeant, Undersheriff Di Yorio worked the Riverside Jail and the Moreno Valley Police Department. In 1995, he was promoted to the rank of Sheriff’s Lieutenant and worked assignments at the Moreno Valley Police Department and the Southwest Detention Center.

In 1999, Undersheriff Di Yorio was promoted to Captain and assumed command of the Southwest Detention Center. After one year, Undersheriff Di Yorio was transferred to the Robert Presley Detention Center in Riverside. In 2002, Undersheriff Di Yorio was reassigned to the Moreno Valley Police Department where he served as the city’s Chief of Police. During his tenure as Police Chief, Undersheriff Di Yorio was an active member and past President of the Morning Optimist Club of Moreno Valley and served as Vice President of the Moreno Valley Hispanic Chamber of Commerce.

In 2006, Undersheriff Di Yorio was promoted to Chief Deputy Sheriff and was assigned to oversee the department’s Corrections Division. In this position, Undersheriff Di Yorio was responsible for the operations of the Robert Presley Detention Center, Southwest Detention Center, Larry D. Smith Correctional Facility, Indio Jail, Blythe Jail, inmate transportation services, and the Planning and Research Unit.

In August 2008, Sheriff Stan Sniff appointed Undersheriff Di Yorio to the rank of Assistant Sheriff, responsible for oversight of the Sheriff’s Department’s Administration, Corrections, Courts, and Coroners Divisions.

Undersheriff Di Yorio is a United States Army veteran and he and his family have lived in the Riverside area since 1962. He earned his Bachelor of Science degree in Criminal Justice from California State College, San Bernardino.