General Information

The Sheriff's Office headquarters is located in the historic City of Trenton in the Civil Court House. The agency also maintains two other separate operations centers at the Criminal Court House and the Trenton-Mercer Airport. Presently, there are approximately 150 sworn personnel and 70 civilian employees.

The Sheriff's Office comprises many units, including Court Security, a Tactical Response Team, K-9 Unit, Civil Process, Detective Bureau/ Fugitive Unit, Community Education Programs, Inmate Transportation, participation in Federal, State, and Local Task Forces, Airport Security and more.

Mercer County Sheriff's Office
175 South Broad Street
Trenton, New Jersey 08650
(609) 989-6111 

• Sheriff John A. "Jack" Kemler
• Undersheriff Pedro Medina
• Undersheriff Jason Salvatore
• Undersheriff Robert James
• Chief Warrant Officer Brian Amantia
• Chief Sheriff's Officer James Udijohn
• Assistant to the Sheriff, Cathleen G. Garton