Mercer County Sheriff
Mercer County, NJ
County
Partisan
Current Incumbent
John "Jack" A. Kemler
Democratic
In office since January 2024
Next Election
Nov 3, 2026
Filing Window
ClosedJan 1, 2026 - Jun 2, 2026
Term Length
3 years
Position Type
Full Time
Salary
$107,250 per year
Number of Seats
1
About this position
The County Sheriff is the chief law enforcement official of the county and is responsible for ensuring that all local, state, and federal laws are followed.
Eligibility requirements
- Must be a resident of the district
- US citizen, resident of county for at least 3 years
Filing information
Elections office
209 S. Broad Street, Trenton, NJ 08608
Phone: 609-989-6464
Fee & signature requirements
The Petition must contain at least 100 valid signatures for a County office position
Filing instructions
Submit paperwork to the County Clerk's office.
Primary Type
Partisan
Primary Date
Jun 5, 2029
Primary Filing
Open
Deadline: Mar 26, 2029