state senate districtNew Jersey 12th State Senate District
presidential margin
2004–2024 · Democratic minus Republican
2004R+13.0
2008R+6.7
2012R+6.2
2016R+17.9
2020R+14.2
2024R+25.6
net swing · 2004→2024R+12.7R+13.0 → R+25.6
vs. U.S. · 2024R+24.2R+25.6 vs R+1.5
presidential returns
2024 turnout 68.7% of 169,036 citizens 18+
Year
Democrat
Republican
Others
Total
CVAP
Turnout
2024
41,927
71,680
2,478
116,085
169,036
68.7%
2020
52,818
70,533
1,037
124,388
160,962†
77.3%
2016
41,271
60,021
3,383
104,675
157,652†
66.4%
2012
41,537
47,077
1,163
89,777
154,077†
58.3%
2008
45,432
52,010
1,227
98,669
152,810†
64.6%
2004
40,203
52,250
505
92,958
151,543†
61.3%
† Citizen voting-age population estimated for prior cycles from the constituent-county ACS trend anchored to the current figure. Source: ACS 5-year, table B05003.
——
D+60R+60
20042024
Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupNJ SD 12New JerseyUnited States
Italian20.5%13.7%4.8%
Irish17.6%12.1%9.4%
German11.0%8.6%12.5%
Polish6.7%4.6%2.2%
English6.0%4.9%9.5%
American5.3%3.3%5.3%
Russian2.0%1.3%—
Hungarian0.9%——
Puerto Rican3.1%5.1%1.8%
Mexican2.3%2.6%11.3%
Dominican1.8%4.0%0.7%
Colombian0.7%1.7%0.4%
Peruvian0.5%0.8%—
Cuban0.5%0.9%0.7%
Honduran0.4%—0.3%
Ecuadorian0.3%1.7%—
Asian Indian4.6%4.6%1.4%
Chinese1.2%1.6%1.3%
Filipino0.8%1.3%0.9%
Pakistani0.4%0.4%—
Korean0.3%1.1%0.4%
Vietnamese0.2%0.2%0.6%
African American†3.6%8.6%9.9%
Jamaican0.4%0.8%0.4%
Haitian0.3%0.7%0.3%
African0.2%0.5%0.5%
Nigerian0.2%0.4%0.2%
Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.
Age and life stage
Measure
NJ SD 12
New Jersey
United States
Median age
41.1
40.3
39.1
Age 18–24
8.2%
8.4%
9.2%
Age 65 and older
19.3%
17.1%
17.2%
Household economy
Measure
NJ SD 12
New Jersey
United States
Median household income
$119,209
$103,556
$84,427
Poverty rate
6.9%
9.7%
12.5%
Bachelor's degree or higher (25+)
44.4%
43.5%
35.6%
Languages at home
Measure
NJ SD 12
New Jersey
United States
Speaks a non-English language at home
25.0%
33.2%
22.3%
Spanish
10.2%
17.2%
13.6%
Russian, Polish, or other Slavic
1.6%
1.7%
0.7%
Other Indo-European
6.0%
5.6%
2.0%
Other Asian & Pacific Island
1.8%
1.6%
1.1%
Religious landscape
Measure
NJ SD 12
New Jersey
United States
Catholic
—
32.0%
18.6%
Evangelical Protestant
—
5.1%
16.5%
Unclaimed / not counted
—
47.8%
51.5%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
New Jersey 12th State Senate District
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
−13.0%
2008
−6.7%
2012
−6.2%
2016
−17.9%
2020
−14.2%
2024
−25.6%
DemocraticRepublican
6 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year. Third-party votes in 2012 are allocated from certified county totals by this place's share of each county's two-party vote — that cycle's precinct source records two-party splits. † 2004, 2020 sub-county results are estimated: the source's block-level detail for these cycles was unreliable — either county/municipality-level consolidated reporting (COVID-era) or a precinct-to-block allocation that misplaced votes — so the figures are allocated from the constituent county totals in proportion to the place and scaled to certified totals.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
R
36.1%Harris41,927
61.7%Trump71,680
2.1%
R+25.6
R+11.4
R+24.2
116,085
R
42.5%Biden52,818
56.7%Trump70,533
0.8%
R+14.2
D+3.7
R+18.7
124,388
R
39.4%Clinton41,271
57.3%Trump60,021
3.2%
R+17.9
R+11.7
R+20.0
104,675
R
46.3%Obama41,537
52.4%Romney47,077
1.3%
R+6.2
D+0.5
R+10.0
89,777
R
46.0%Obama45,432
52.7%McCain52,010
1.2%
R+6.7
D+6.3
R+13.9
98,669
R
43.2%Kerry40,203
56.2%Bush52,250
0.5%
R+13.0
—
R+10.5
92,958
current representation
Current officeholders
ROwen HenryState Senate · 12
State legislative officeholder from OpenStates nightly current-legislator data.
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 Republican high of 25.6 points in 2024. Between 2020 and 2024 the district moved 11.4 points toward the Republican candidate; the 2024 margin was 25.6 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 →
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 25.6 points (R+25.6), carried by the Republican candidate. Out of 116,085 votes cast, 41,927 went Democratic and 71,680 went Republican.
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 6 presidential elections in New Jersey 12th State Senate District from 2004 to 2024. Of those, 0 went Democratic and 6 went Republican.
