The Sheriff's main office is located in the historic city of Trenton in the Civil Court House. This agency also maintains two other separate operations centers at the Criminal Court House and the Trenton-Mercer Airport. At the current time there are over 140 sworn personnel and 60 civilian employees.
The Sheriff's Office is comprised of several units including Court Security, Emergency Response Team, K-9, Civil Process, Detective Bureau / Fugitive Unit, Community Education Programs, Transportation, Task Forces Federal, State and Local and Airport Patrol.
Mercer County Sheriff's Office
Mercer County Court House
175 South Broad Street
Trenton, NJ 08650
Sheriff John A. "Jack" Kemler
Undersheriff Pedro Medina
Undersheriff Jessica Plumeri
Chief Sheriff's Officer Christopher Kenyon
Chief Warrant Officer Brian Amantia
Assistant to the Sheriff, Cathleen G. Garton