Template:NJ Union County Commissioners

Union County is governed by a Board of County Commissioners, whose nine members are elected at-large to three-year terms of office on a staggered basis with three seats coming up for election each year, with an appointed County Manager overseeing the day-to-day operations of the county. At an annual reorganization meeting held in the beginning of January, the board selects a Chair and Vice Chair from among its members. , Union County's County Commissioners are:

Rebecca Williams (D, Plainfield, 2025), Joesph Bodek (D, Linden, 2026), James E. Baker Jr. (D, Rahway, 2024), Michele Delisfort (D, Union Township, 2026), Sergio Granados (D, Elizabeth, 2025), Bette Jane Kowalski (D, Cranford, 2025), Vice Chair Lourdes M. Leon (D, Elizabeth, 2026), Alexander Mirabella (D, Fanwood, 2024) and Chair Kimberly Palmieri-Mouded (D, Westfield, 2024).

Constitutional officers elected on a countywide basis are: Clerk Joanne Rajoppi (D, Union Township, 2025), Sheriff Peter Corvelli (D, Kenilworth, 2026) and Surrogate Christopher E. Hudak (D, Clark, 2027).