About Deputy County Executives

Administrative Services

David VillanuevaDavid Villanueva is the Deputy County Executive for Administrative Services at Sacramento County and was appointed by the Sacramento County Board of Supervisors in February 2011.

Administrative Services includes the departments of Clerk Recorder, Finance, General Services, Personnel, Revenue Recovery, Technology, and Voter Registration and Elections.  These departments facilitate the day-to-day operation of Sacramento County.

Mr. Villanueva had been Sacramento County's Chief Information Officer and the Director of the Department of Technology. Prior to joining Sacramento County in July 2008, he worked for the State of California as Deputy Director and Chief Information Officer for the Department of General Services and as an accounting administrator with financial and reporting responsibilities.

Mr. Villanueva has a California State University, Sacramento Bachelor of Science Degree in Business Administration, concentrating in Accountancy; and he has completed their Leadership for the Government Executive program.

Municipal Services

Robert Leonard Robert B. Leonard is the Deputy County Executive for Municipal Services​ at Sacramento County and has provided leadership to the Municipal Services since January 2011.

Municipal Services is comprised of the departments of Agricultural Commission & Weights and Measures, Animal Care, and Regional Parks. The Sanitation District Agency, Sacramento Housing and Redevelopment Agency and the Library JPA have a coordinative relationship with Municipal Services.

Mr. Leonard's former leadership positions include being the Director for the Department of Economic Development and Intergovernmental Affairs, as well as Chief Operating Officer for the Sacramento County Airport System. Prior to joining Sacramento County, he held positions at the Denver Stapleton International Airport and with a major international consulting firm.

Mr. Leonard holds two degrees from California State University, San Jose: Bachelor of Science Degree in Aeronautical Engineering and a Master of Science Degree in Civil Engineering. In addition, he has completed the program for state and local government senior executives at Harvard University. 

Public Works & Infrastructure

Steve HartwigSteve Hartwig is the Deputy County Executive for Public Works & Infrastructure at Sacramento County and was appointed by the Sacramento County Board of Supervisors in September 2019.​

Public Works and Infrastructure was created in 2017 and includes the office of Development & Code Services, and the departments of Transportation, Waste Management and Recycling, and Water Resources.

Mr. Hartwig has more than 34 years in the public works/engineering profession, Hartwig began his professional civil engineering career with the Sacramento County until 1997. Since then, Hartwig served in various leadership roles in cities and special districts, as well as private engineering firms.

Hartwig has a Bachelor of Science degree in Civil Engineering from California State University, Sacramento. He is also a registered professional engineer and a registered professional traffic engineer in the State of California.​

Social Services

Bruce WagstaffBruce Wagstaff is the ​​Deputy County Executive for Social Services at Sacramento County and was appointed by the Sacramento County Board of Supervisors in July 2018​. 

Social Services has the departments of Child Support Services, Coroner, Environmental Management, Health & Human Services, Human Assistance, Probation, and Public Defender. Conflict Criminal Defender and First 5 Sacramento have a coordinative relationship with Social Services.

Mr. Wagstaff has an extensive public service career, including executive positions at both the State and local level, and also served previously as the Chief Deputy County Executive in Sacramento County. ​

Mr. Wagstaff is a graduate of UC Davis with a degree in Political Science/Public Service and obtained a Master’s Degree in Public Administration from California State University, Sacramento.