New Jersey State Senate seat · lines in effect since 2023
New Jersey Legislative District 12
A district of about 229,000 people, 43% of adults with a bachelor's degree. It votes R+23.2 relative to the nation for president.
2023 election
Nov 7, 2023- Owen Henry (R) · won63.3%
- Brandon A. Rose (D)36.7%
Source: New Jersey Division of ElectionsUpdated Sep 30, 2026, 1:01 PM ET
Where it sits among all 40 seats
Every New Jersey State Senate seat by partisan lean, from most Democratic to most Republican. Lean is the seat's presidential vote on current lines, relative to the nation.
Democratic
Source: 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET
Every election for this seat
18 races since 1971; the seat changed party 2 times. District numbers are redrawn after each census: each group is one set of lines.
Won by: the winner's lead over the runner-up, in points of the vote. Source: 99chambers results archive (MEDSL, Klarner, state election offices)
Districts that overlap District 12
The state's districts in other chambers that share residents with this one, and the share of District 12's area in each.
- New Jersey General Assembly
- LD-12 100%
Every race on these lines
Results recomputed from precinct returns as if today's boundaries had always existed, so years compare like for like.
| 2024 | |
|---|---|
| President | R+25.7 |
| U.S. Senate | R+21.2 |
Outlined: the race for this seat itselfBlank: no race that year
Source: 99chambers results archive: precinct results allocated to current lines; 2026: civicAPIUpdated Nov 8, 2026, 7:01 PM ET
Who lives here, compared
Grey bars show the spread of all 40 seats. Small marks are other seats in New Jersey. The black marker is District 12.
Lower than 51% of seats.
Higher than 79% of seats.
Lower than 64% of seats.
Lower than 62% of seats.
Lower than 51% of seats.
Less dense than 82% of seats.
Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current linesUpdated Oct 13, 2026, 5:06 AM ET
Seats most like this one
Nearest seats on demographics, density and lean.
District 2445% college gradsR+18.6Not up in 2026District 10
42% college gradsR+26.7Not up in 2026District 23
45% college gradsR+9.1Not up in 2026District 13
53% college gradsR+13.5Not up in 2026
Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current lines; 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET