Asterisks(*) denote incumbents. Only contested election in Union County LocalSource’s coverage area are represented.
| Union County Freeholders | |
| Three 3-year terms | |
| Alexander Mirabella-D* | Diane Barabas-R |
| Mohamed Jalloh-D* | Stephen Kozlovich-R |
| Bruce Bergen-D | Krzysztof Chris Nowak-R |
| Clark | |
| Mayor — 4-year term | |
| Richard Kazanowski-D | Salvatore Bonaccorso-R* |
| Councilman-at-large — Three 4-year terms | |
| Michael Altmann-D | Angel Albanese-R* |
| Michelle Novak-D | Alvin Barr-R* |
| Phil Laskowski-D | Bill Smith-R |
| Cranford | |
| Township Committee — One 3-year term | |
| Thomas Hannen Jr.-D | W. Scott Mease-R |
| Kenilworth | |
| Borough Council — Two 3-year terms | |
| Kay Anne Ceceri-D | Fred Pugliese-R* |
| John Mauro-D | Toni K. Giordano-R |
| Linden | |
| 9th Ward Councilman — One 3-year term | |
| Christopher Cherubino-D | Armando J. Medina-I |
| Charles G. Florio-I | |
| Rahway | |
| City Council — Six 4-year terms | |
| 1st Ward | |
| Rodney Farrar-D | Larry Bodine-R |
| 2nd Ward | |
| Michael Cox-D* | Joseph Mikajlo-R |
| 3rd Ward | |
| Bob Bresenhan Jr.-D | Jeffrey Spatola-R |
| 4th Ward | |
| David Brown-D* | Betty Ortiz-R |
| 5th Ward | |
| Jennifer Wenson-Maier-D* | Jim Barwick-R |
| 6th Ward | |
| Samson Steinman-D* | John Koenig-R |
| Roselle | |
| Councilman-at-large — One 3-year term | |
| Christine Dansereau* | |
| James Moore Sr. | Roger Stryeski* |
| Roselle Park | |
| Borough Council Two 3-year terms | |
| 2nd Ward | |
| Charlene Storey-D | Scott Nicol-R |
| 5th Ward | |
| David Jacobs-D | Michael Yakubov-R* |
| Springfield | |
| Township Committee — Two 3-year terms | |
| Margaret Bandrowski-D | Mark Krauss-R* |
| David Barnett-D | Jerry Fernandez-R* |
| Union | |
| Township Committee — Two 3-year terms | |
| Anthony Terrezza Jr.-D* | Christopher Hackett-R |
| Manuel Figueiredo-D* | Robert Deckert Jr.-R |