1957 New Jersey Senate election
The 1957 New Jersey Senate elections were held on November 5.
The elections coincided with the re-election of Governor Robert Meyner. Ten of New Jersey's 21 counties elected Senators. Democrats gained one seat in Passaic County, where Anthony J. Grossi unseated incumbent Republican Frank W. Shershin.
Incumbents not running for re-election
Democratic
Summary of results by county
Close races
Seats where the margin of victory was under 10%:- ''''''
Other gains
Seats that flipped party control where the margin of victory was over 10%:- ''''''