Turnout was the second-lowest on record, but the 1.6 million voters marked a nearly 39% increase from 2015, the last time state legislative races headlined.
Republicans added a Senate seat and at least two Assembly seats, the party's first net gains in a legislative cycle since 1991. Democrats are still in control.
N.J. Voters will decide who will be in the Assembly for the next two years, although the map makes it a near-certainty Democrats will keep their majority.
In the last quarter-century, Republicans have shrunk from 58 to 26 seats in the Assembly. Democrats are jockeying for even more gains in once-red suburbs.