Since the creation of the 40-district legislative map in 1973, the 38th District has always included Paramus, though early in the lifetime of the 40-district map, Hackensack was also within the district. In the 1973 version of the map, and in the decade following the 1981 redistricting, Paramus and Hackensack anchored the 38th District with numerous nearby municipalities in central Bergen County compromising the remainder of the district. In the 1991 redistricting, the 38th became more of a crescent shape stretching from Cliffside Park and Palisades Park, northwest to Elmwood Park, then north and east to Paramus and Oradell. This shape was slightly modified in 2001 when that year's redistricting extended the 38th to the Hudson River picking up Fort Lee and Edgewater. The crescent shape of the district was removed in the 2011 redistricting when it changed to a T-shaped district extending out of Bergen County for the first time.
Election history
In October 2015, Anthony Cappola left the race for an Assembly seat in the 38th District and resigned from office as a member of the River Edge Borough Council, following disclosures that he had written and published a 2003 book titled Outrageous that was described as "full of racial slurs, rants and stereotypes". The Bergen County Republican Organization filed suit in Passaic County, seeking to replace Cappola's spot on the ballot with Fernando Alonso and offering to cover the $100,000 cost of reprinting ballots. Bergen County ClerkJohn Hogan argued that absentee ballots had already been printed and distributed, with nearly ballots already completed and submitted to the Clerk's Office. The Republicans unexpectedly dropped the effort to have the candidate replaced on October 13 and Cappola later announced his intention to continue in the race. Ultimately Cappola and his running mate Mark DiPisa were defeated by Democratic incumbents Tim Eustace and Joseph Lagana. All three seats became vacant in 2018. Robert M. Gordon resigned his Senate seat on April 4, 2018 to accept an appointment to the New Jersey Board of Public Utilities. Democratic committee members in Bergen and Passaic Counties unanimously selected Assemblyman Lagana over Assemblyman Eustace to replace Gordon in the Senate on April 11; he took his Senate seat on April 12. The following day on April 13, Eustace resigned his seat to become Deputy Director of the North Jersey District Water Supply Commission. Committee members selected Fair Lawn Mayor Lisa Swain and Congressional aide and former Bergenfield Council President Chris Tully as the replacements in the Assembly; they were sworn in on May 24.