Mark Schwartz
Mark Schwartz became County Manager in January 2016 after serving six months as Acting County Manager. He is a former Deputy County Manager and Director of the Department of Management & Finance.
Michelle Cowan
Michelle Cowan has been working as a Deputy County Manager since July 1, 2015. Prior to this position, Michelle has served Arlington County as the Director of Management and Finance.
James Schwartz
James Schwartz was appointed Deputy County Manager in September 2015, overseeing public safety and technology. For 11 years, he served as Arlington Fire Chief.
Shannon Flanagan-Watson
Shannon Flanagan-Watson was appointed as Deputy County Manager in May 2018, with oversight responsibility for Arlington Economic Development, Arlington Public Libraries, and a portion of the Department of Environmental Services, one of the County’s largest departments.
Samia Byrd
Samia Byrd is the Chief Race and Equity Officer, leading the County’s work to advance racial equity, diversity and inclusion both internal and external to the organization.
Lynne Porfiri
Lynne Porfiri is the Chief of Staff and has been with the County since 2008.
Bryna Helfer
Bryna Helfer is an Assistant County Manager and Director of Communications and Public Engagement.
See the County Organizational Chart
Leadership

Beth Arthur
Sheriff

Jack Belcher
Chief Information Officer and Director, Department of Technology Services

Gurjit Chima
Assistant County Manager for the Office of Human Rights, EEO & ADA

Parisa Dehghani-Tafti
Commonwealth’s Attorney

Carla de la Pava
Treasurer

Greg Emanuel
Director, Department of Environmental Services

Paul Ferguson
Clerk of the Circuit Court

Marcy Foster
Director, Department of Human Resources

Anita Friedman
Director, Department of Human Services

Diane Kresh
Director, Department of Libraries

Stephen A. MacIsaac
County Attorney

Maria Meredith
Director, Department of Management & Finance

Aaron Miller
Director, Department of Public Safety Communications and Emergency Management

Charles Penn
Acting Chief of Police

David Povlitz
Fire Chief

Gretchen Reinemeyer
General Registrar

Jane Rudolph
Director, Department of Parks and Recreation

Telly Tucker
Director, Arlington Economic Development
Other Staff Lists