Chief of Police 

Chief Donald Hennessy, Jr. began his career with the Jupiter Police Department as a Communications Officer in 2002. 

In 2007, after graduating from the police academy, he was hired as a sworn police officer. During his career as an officer, he was assigned to the Road Patrol, the Beach Unit, and also served as the department’s Accreditation Manager. 

In 2015, Chief Hennessy was promoted to the rank of Sergeant and was assigned to the Nights 2 Platoon until his reassignment to the Special Operations Division and then the Criminal Investigations Division. 

In 2021, Chief Hennessy was promoted to Captain and served as the District 2 and Nights 2 Platoon Commander. In 2022, he was promoted to Major and supervised the Patrol Bureau and then the Administrative Services Bureau. 

In 2024, Chief Hennessy was promoted to Deputy Chief and oversaw all major bureaus, led strategic initiatives and served as the Deputy Incident Commander in the Town’s Incident Command Staff. He was appointed as Interim Chief of Police in October 2025. 

Chief Hennessy holds a Bachelor’s Degree in Supervision and Management from Palm Beach State College and a Master’s Degree in Public Administration from Florida State University.

To contact the Chief of Police, please call 561-741-2231 or e-mail Chief Donald Hennessy.