Mercer County Executive

The County Executive of Mercer County, New Jersey, United States is the chief officer of the county's executive branch. The executive oversees the administration of county government and works in conjunction with Board of County Commissioners, which acts in a legislative role. The New Jersey Superior Court had subsumed and replaced county courts in 1983. The office of the County Executive is in the county seat and state capital, Trenton.

As of the 2020 United States censusthe Mercer was the state's 12th-most-populous county, with a population of 387,340.

The County Executive is elected directly by the voters to a term of four years with no term limits. The incumbent, Daniel R. Benson was sworn into office January 2, 2024 after being elected in November 2023.