MaryEllen Sheppard

Assistant County Manager
Maricopa County

Deputy Chief MaryEllen Sheppard has been with the Maricopa County Sheriff’s Office since 1983. As a Deputy Chief she has served in the Administration Management Bureau, Criminal Justice Services Bureau and Custody Bureaus where she has had Bureau level oversight of the Human Resources Division, Legal Compliance Division, OSHA and Fire Safety Division, Detention Standards and Compliance Division, Custody Support (Inmate Programs) Division, Institutional Services Division and the Medical Services and Lower Buckeye Jail facilities. Her work has earned numerous awards for innovation and results. Chief Sheppard is a member of the Seriously Mentally Ill Commission of Maricopa County. She has worked as a consultant and trainer for the Department of Justice, National Institute of Corrections, specializing in Inmate Classification, women offenders, high-risk inmate management, and system approaches to managing offenders.

Chief Sheppard has her Bachelor’s Degree in Criminal Justice and Masters Degree in Organizational Management. She is a Certified Jail Manager and a Certified Public Manager. Chief Sheppard is an adjunct faculty member at Phoenix Community College and teaches Criminology. Chief Sheppard has also been an active volunteer at both a local and national level. She has served on various executive Boards and has conducted leadership training for a national non-profit philanthropic organization focused on building strong mother-daughter relationships and developing confident, well-rounded and socially aware contributors to our communities.