New Jersey 12th State Senate District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 (partial returns from 1876) · 38 presidential cycles · 38 with a vote-share denominator · 34 with a national benchmark
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Lyndon B. Johnson1964
56.8%
27,044 votes · D+14.2 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 47.2%
Republican
Warren G. Harding1920
76.0%
8,967 votes · R+53.8 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1956 · 74.2%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
52,838votes
42.1% of the vote · R+14.1 · modeled estimate
Runner-up · Barack Obama, 2008 · 45,361 votes
Republican
Donald Trump2024
73,752votes
61.7% of the vote · R+25.5 · modeled estimate
Runner-up · Donald Trump, 2020 · 70,546 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
Al Gore2000
−3.0pts D vs U.S.
Place R+2.5 · U.S. D+0.5 · modeled estimate
Runner-up · Bill Clinton, 1996 · −6.4 pts
Republican
Dwight D. Eisenhower1956
+33.3pts R vs U.S.
Place R+48.7 · U.S. R+15.4 · modeled estimate
Runner-up · Herbert Hoover, 1932 · +32.1 pts
current representation
Current officeholders
ROwen HenryState Senate · 12
State legislative officeholder from OpenStates nightly current-legislator data.
U.S. House elections · 3 House
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each row is a county-allocated estimate of U.S. House votes for this district — county returns apportioned onto its boundary, not precinct-counted. “Vote lead” is the estimated local lead here, not necessarily the winner of the full contest.
Source · Akashic county-allocated estimate from certified county returns, House; not precinct-counted.
Year
Vote lead
Democratic
Republican
Total
2024
R
43.9%46,156
56.1%58,889
105,045
2020
D
50.2%40,086
49.8%39,844
79,930
2018
R
43.7%15,860
56.3%20,410
36,270
Anchored in the rural and suburban communities of northwestern New Jersey, this district delivered a 25-point-plus margin in 2024, making it a reliable outlier in a state that typically trends Democratic in statewide contests.
Across the recorded series it reached a Democratic high of 14.2 points in 1964 and a Republican high of 53.8 points in 1920. Between 2020 and 2024 the district moved 11.4 points toward the Republican candidate; the 2024 margin was 25.5 points.
A population of 225,080, a 72% non-Hispanic-white share, and a median household income of $119,209 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 8 and State Senate District 5.
Akashic
Political twins — state-senate districts
The state-senate districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons → · Or open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
New Jersey 12th State Senate District. Akashic. https://akashic.app/sld-upper/34012/. Accessed May 20, 2026. License: CC BY 4.0.
How did New Jersey 12th State Senate District vote in 2024?
In 2024, New Jersey 12th State Senate District voted Republican by 25.5 points (R+25.5), carried by the Republican candidate. Out of 119,487 votes cast, 43,260 went Democratic and 73,752 went Republican.
When did New Jersey 12th State Senate District last vote Democratic?
The most recent presidential election in which New Jersey 12th State Senate District voted Democratic was 1996.
How many people live in New Jersey 12th State Senate District?
New Jersey 12th State Senate District has a population of 225,080 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in New Jersey 12th State Senate District?
Median household income in New Jersey 12th State Senate District is $119,209 — above the national median of $80,734. The New Jersey state median is $103,556.
What is the political history of New Jersey 12th State Senate District?
Akashic tracks 38 presidential elections in New Jersey 12th State Senate District from 1876 to 2024. Of those, 3 went Democratic and 35 went Republican.