2021Final results
2021 election for New Jersey Legislative District 10
New Jersey State Senate · New Jersey
Jim Holzapfel (R) won with 69.0% of the vote, defeating Emma Mammano (D) by 38.0 points.
Jim HolzapfelRepublican · winner · incumbent
69.0%57,021
Emma MammanoDemocrat
31.0%25,635
82,656 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The seat over time
D − R margin in this seat's races around 2021
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET