† Citizen voting-age population estimated for prior cycles; 2004 predates the ACS and is extrapolated. Source: ACS 5-year, table B05003.
——
D+60R+60
1 counties by 2024 margin · County returns · 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
GroupTrenton-Princeton, NJNew JerseyUnited States
Italian10.2%13.7%4.8%
Irish9.8%12.1%9.4%
German8.3%8.6%12.5%
English5.7%4.9%9.5%
Polish4.9%4.6%2.2%
American2.4%3.3%5.3%
Russian1.3%1.3%—
Hungarian1.1%——
Guatemalan6.0%—0.5%
Puerto Rican5.0%5.1%1.8%
Dominican2.8%4.0%0.7%
Ecuadorian2.1%1.7%—
Mexican1.3%2.6%11.3%
Honduran0.8%—0.3%
Colombian0.7%1.7%0.4%
Peruvian0.6%0.8%—
African American†13.7%8.6%9.9%
Haitian1.0%0.7%0.3%
Jamaican0.8%0.8%0.4%
African0.6%0.5%0.5%
Liberian0.6%——
Nigerian0.4%0.4%0.2%
Ghanaian0.2%——
West Indian0.2%——
Asian Indian7.2%4.6%1.4%
Chinese2.4%1.6%1.3%
Filipino0.7%1.3%0.9%
Korean0.7%1.1%0.4%
Japanese0.3%—0.2%
Pakistani0.3%0.4%—
Taiwanese0.2%——
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
Trenton-Princeton, NJ
New Jersey
United States
Median age
39.5
40.3
39.1
Age 18–24
10.2%
8.4%
9.2%
Age 65 and older
16.0%
17.1%
17.2%
Household economy
Measure
Trenton-Princeton, NJ
New Jersey
United States
Median household income
$100,645
$103,556
$84,427
Poverty rate
10.3%
9.7%
12.5%
Bachelor's degree or higher (25+)
45.4%
43.5%
35.6%
Languages at home
Measure
Trenton-Princeton, NJ
New Jersey
United States
Speaks a non-English language at home
35.7%
33.2%
22.3%
Spanish
19.1%
17.2%
13.6%
Other Indo-European
5.5%
5.6%
2.0%
Chinese (incl. Mandarin & Cantonese)
2.2%
1.5%
1.1%
Other Asian & Pacific Island
2.5%
1.6%
1.1%
Religious landscape
Measure
Trenton-Princeton, NJ
New Jersey
United States
Catholic
27.8%
32.0%
18.6%
Evangelical Protestant
5.5%
5.1%
16.5%
Unclaimed / not counted
52.1%
47.8%
51.5%
Mainline Protestant
6.6%
4.2%
5.2%
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.
Trenton-Princeton, NJ
presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
1892
−2.3%
1896
−38.0%
1900
−26.7%
1904
−26.0%
1908
−22.3%
1912
+9.9%
1916
−14.1%
1920
−29.8%
1924
−31.1%
1928
−19.0%
1932
−5.1%
1936
+23.7%
1940
+14.8%
1944
+17.4%
1948
+13.3%
1952
+6.7%
1956
−3.1%
1960
+22.5%
1964
+42.5%
1968
+14.2%
1972
−5.3%
1976
+8.5%
1980
+5.8%
1984
−3.5%
1988
+2.5%
1992
+14.4%
1996
+28.2%
2000
+27.0%
2004
+23.4%
2008
+36.1%
2012
+36.7%
2016
+37.1%
2020
+40.4%
2024
+33.9%
DemocraticRepublican
34 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.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
D
65.9%Harris107,558
32.0%Trump52,274
0.9%Stein1,391 +179
D+33.9
R+6.5
D+35.3
163,270
All 182 candidates in 2024 · 180 minor / independent
Kamala D HarrisDemocratic65.9%107,558
Donald J TrumpRepublican32.0%52,274
Jill SteinIndependent0.9%1,391
Robert F KennedyIndependent0.5%772
Chase OliverLibertarian0.2%334
Claudia De La CruzIndependent0.1%181
OtherAll other candidates0.1%163
Randall TerryIndependent0.1%85
Nikki HaleyIndependent0.0%76
Rachele FruitIndependent0.0%71
Cornel WestIndependent0.0%34
Joseph KishoreIndependent0.0%32
Peter SonskiIndependent0.0%25
Chris ChristieIndependent0.0%16
Bernie SandersIndependent0.0%11
Ronald D DesantisIndependent0.0%9
Jd VanceIndependent0.0%7
Josh ShapiroIndependent0.0%7
Elizabeth CheneyIndependent0.0%6
Mike PenceIndependent0.0%6
Mitt RomneyIndependent0.0%6
Rashida TlibIndependent0.0%5
Tulsi GabbardIndependent0.0%5
Andrew YangIndependent0.0%4
Joe BidenIndependent0.0%4
Benjamin SasseIndependent0.0%3
Brian KempIndependent0.0%3
Jimmy CarterIndependent0.0%3
John KasichIndependent0.0%3
Kanye WestIndependent0.0%3
Michael BloombergIndependent0.0%3
Pete ButtigiegIndependent0.0%3
Shiva AyyaduraiIndependent0.0%3
Wes MooreIndependent0.0%3
Condoleeza RiceIndependent0.0%2
Dora Jane WhiteIndependent0.0%2
Hillary ClintonIndependent0.0%2
J Richard NortonIndependent0.0%2
Marco RubioIndependent0.0%2
Nathaniel AhernIndependent0.0%2
Noah BarnaczIndependent0.0%2
Paul RyanIndependent0.0%2
Ritchie TerresIndependent0.0%2
Roberto A DallastaIndependent0.0%2
Stephen WebberIndependent0.0%2
Umar ToheedIndependent0.0%2
Vivek RamaswamyIndependent0.0%2
Abella DangerIndependent0.0%1
Aiden WiltonIndependent0.0%1
Al GoreIndependent0.0%1
Alan G FinnIndependent0.0%1
Alex FernandezIndependent0.0%1
Allen MaIndependent0.0%1
Amy KlobucharIndependent0.0%1
Angela PoviaIndependent0.0%1
Anna Marie TothIndependent0.0%1
Anthony FasanellaIndependent0.0%1
Arnold SchwarzeneggerIndependent0.0%1
Bari WeissIndependent0.0%1
Bertie BrophyIndependent0.0%1
Bill MaherIndependent0.0%1
Bob MeserollIndependent0.0%1
Brian JadneyIndependent0.0%1
Brian McdonaldIndependent0.0%1
Brodie DeckerIndependent0.0%1
C M PunkIndependent0.0%1
Caia GarnoneIndependent0.0%1
Carlo M CanestriIndependent0.0%1
Christopher SmithIndependent0.0%1
David A WilsonIndependent0.0%1
Debra Marie JacksonIndependent0.0%1
Don PoviaIndependent0.0%1
Dwayne JohnsonIndependent0.0%1
Dylan LoisIndependent0.0%1
Edgar RichardsIndependent0.0%1
Edward Laraaji GordanIndependent0.0%1
Eleni A NicozisisIndependent0.0%1
Elizabeth IglesiasIndependent0.0%1
Ernest C AriansIndependent0.0%1
Evan CheungIndependent0.0%1
Evan ZicardiIndependent0.0%1
Fr H Todd CarterIndependent0.0%1
Franklin R SanchezIndependent0.0%1
Gary HartIndependent0.0%1
Gary VaynerchukIndependent0.0%1
Gavin NewsomIndependent0.0%1
Gigi WhittakerIndependent0.0%1
Gretchen DimarcoIndependent0.0%1
Griffin SullivanIndependent0.0%1
Hank PeckerIndependent0.0%1
Henry J BurkIndependent0.0%1
Hugh T DuganIndependent0.0%1
Ian HofferIndependent0.0%1
Imani VoorheesIndependent0.0%1
Imran KhanIndependent0.0%1
Isaiah BarnesIndependent0.0%1
J Matthew PearsonIndependent0.0%1
Jack YaoIndependent0.0%1
Jalen BrunsonIndependent0.0%1
James DimonIndependent0.0%1
James H MattisIndependent0.0%1
Jason HollanderIndependent0.0%1
Jason KauffmanIndependent0.0%1
Jeannie ReidIndependent0.0%1
Jeffey WilliamsIndependent0.0%1
Jeremy AliceaIndependent0.0%1
Jerry HuilizIndependent0.0%1
Jett AvilesIndependent0.0%1
Joe ManchinIndependent0.0%1
John EdmondsonIndependent0.0%1
John GaltIndependent0.0%1
John Helmsdcerfer IiiIndependent0.0%1
John SanderIndependent0.0%1
John T KingIndependent0.0%1
Jonathan MillsIndependent0.0%1
Jordan FingerIndependent0.0%1
Jose RodriguezIndependent0.0%1
Ken JeongIndependent0.0%1
Khalid BenjaminIndependent0.0%1
Larry HoganIndependent0.0%1
Leon CoopermanIndependent0.0%1
Luca DelsantoIndependent0.0%1
Mala RaviIndependent0.0%1
Manuel Tejeda Jr.Independent0.0%1
Margarita FeatherstonIndependent0.0%1
Marianne WilliamsonIndependent0.0%1
Matt WongIndependent0.0%1
Max BrassIndependent0.0%1
Michael JarkowskiIndependent0.0%1
Michael LackeyIndependent0.0%1
Michael SchembariIndependent0.0%1
Michael ShippIndependent0.0%1
Mike JohnsonIndependent0.0%1
Mike PiazzaIndependent0.0%1
Mike RoweIndependent0.0%1
Mollie KasicaIndependent0.0%1
Montgomery BrewsterIndependent0.0%1
Nelida AgostoIndependent0.0%1
Niam CampIndependent0.0%1
Nicolas A TrappIndependent0.0%1
Paul AvilesIndependent0.0%1
Paul CovelloIndependent0.0%1
Phil MurphyIndependent0.0%1
Priya PatelIndependent0.0%1
Rafik Latif EstafanIndependent0.0%1
Ramie Nasser-AmedIndependent0.0%1
Randee ValentineIndependent0.0%1
Raphael WarnockIndependent0.0%1
Ray TaylorIndependent0.0%1
Raymond Leo BurkeIndependent0.0%1
Refaat AlarearIndependent0.0%1
Richard BlumeufeldIndependent0.0%1
Richard GirthIndependent0.0%1
Richard HaasIndependent0.0%1
Richard SussweinIndependent0.0%1
Robert FoyIndependent0.0%1
Roger SmithIndependent0.0%1
Ryan ReynoldsIndependent0.0%1
Sam UccioIndependent0.0%1
Saquon BarkleyIndependent0.0%1
Selena CarrIndependent0.0%1
Shaun R PiresIndependent0.0%1
Sophia L DuffyIndependent0.0%1
Sophia TruckIndependent0.0%1
Stella PagodaIndependent0.0%1
Stephanie PeddirodIndependent0.0%1
Tammy BaldwinIndependent0.0%1
Taylor SwiftIndependent0.0%1
Ted CruzIndependent0.0%1
Terrence StokesIndependent0.0%1
Terrisa BukovinacIndependent0.0%1
Thomas MassieIndependent0.0%1
Thomas SznigirIndependent0.0%1
Tim ScottIndependent0.0%1
Timothy ReruchaIndependent0.0%1
Tom CottonIndependent0.0%1
Ty RobinsonIndependent0.0%1
Tyler CowenIndependent0.0%1
William CohenIndependent0.0%1
William NyeIndependent0.0%1
William ParkerIndependent0.0%1
Willie NelsonIndependent0.0%1
D
69.8%Biden122,532
29.4%Trump51,641
0.8%
D+40.4
D+3.3
D+35.9
175,600
D
66.3%Clinton104,775
29.2%Trump46,193
4.5%
D+37.1
D+0.4
D+35.0
158,058
D
67.2%Obama104,377
30.5%Romney47,355
2.3%
D+36.7
D+0.6
D+32.8
155,355
D
67.4%Obama107,926
31.4%McCain50,223
1.2%
D+36.1
D+12.7
D+28.8
160,039
D
61.3%Kerry91,580
37.9%Bush56,604
0.9%
D+23.4
R+3.6
D+25.9
149,510
D
61.4%Gore83,256
34.4%Bush46,670
4.2%
D+27.0
R+1.2
D+26.5
135,559
D
58.9%Clinton77,641
30.8%Dole40,559
10.3%
D+28.2
D+13.8
D+19.6
131,726
D
49.1%Clinton71,383
34.7%Bush50,473
16.1%
D+14.4
D+11.9
D+8.8
145,260
D
50.8%Dukakis68,712
48.3%Bush65,384
0.9%
D+2.5
D+5.9
D+10.2
135,345
R
48.1%Mondale66,398
51.5%Reagan71,195
0.4%
R+3.5
R+9.3
D+14.7
138,121
D
47.4%Carter60,888
41.6%Reagan53,450
11.1%
D+5.8
R+2.7
D+15.5
128,582
D
53.2%Carter69,621
44.7%Ford58,453
2.1%
D+8.5
D+13.9
D+6.5
130,856
R
46.7%McGovern62,180
52.0%Nixon69,303
1.3%
R+5.3
R+19.6
D+17.8
133,191
D
50.4%Humphrey63,218
36.1%Nixon45,354
13.5%
D+14.2
R+28.2
D+14.9
125,529
D
71.2%Johnson86,985
28.7%Goldwater35,081
0.1%
D+42.5
D+20.0
D+19.9
122,214
D
61.2%Kennedy74,166
38.7%Nixon46,924
0.1%
D+22.5
D+25.5
D+22.3
121,269
R
48.3%Stevenson52,684
51.4%Eisenhower56,029
0.4%
R+3.1
R+9.8
D+12.3
109,105
D
53.1%Stevenson57,751
46.4%Eisenhower50,423
0.4%
D+6.7
R+6.6
D+17.5
108,662
D
55.6%Truman49,690
42.3%Dewey37,794
2.2%
D+13.3
R+4.1
D+8.8
89,436
D
58.6%Roosevelt52,383
41.2%Dewey36,844
0.2%
D+17.4
D+2.6
D+9.9
89,371
D
57.3%Roosevelt50,121
42.5%Willkie37,190
0.3%
D+14.8
R+9.0
D+4.8
87,533
D
61.5%Roosevelt47,702
37.8%Landon29,283
0.7%
D+23.7
D+28.9
R+0.5
77,564
R
45.3%Roosevelt30,284
50.4%Hoover33,715
4.3%
R+5.1
D+13.8
R+22.9
66,879
R
40.2%Smith27,908
59.2%Hoover41,056
0.5%
R+19.0
D+12.2
R+1.5
69,338
R
28.4%Davis14,639
59.5%Coolidge30,689
12.1%
R+31.1
R+1.3
R+6.0
51,551
R
33.7%Cox15,713
63.5%Harding29,626
2.9%
R+29.8
R+15.7
R+3.6
46,683
R
41.7%Wilson10,621
55.8%Hughes14,213
2.6%
R+14.1
R+24.0
R+17.2
25,493
D
36.8%Wilson7,773
26.9%Taft5,676
36.3%
D+9.9
D+32.2
R+9.6
21,120
R
36.7%Bryan9,289
59.0%Taft14,941
4.3%
R+22.3
D+3.7
R+12.8
25,329
R
34.9%Parker8,527
60.9%Roosevelt14,900
4.3%
R+26.0
D+0.7
R+6.4
24,467
R
34.9%Bryan7,858
61.7%McKinley13,874
3.4%
R+26.7
D+11.3
R+19.2
22,498
R
28.8%Bryan5,970
66.8%McKinley13,847
4.3%
R+38.0
R+35.7
R+31.9
20,718
R
47.5%Cleveland9,348
49.8%Harrison9,795
2.7%
R+2.3
—
R+3.9
19,671
Congressional elections · 3 Senate races
U.S. Senate
Source · MIT Election Lab (MEDSL), Senate. CC-BY 4.0.
Year
Won
Democratic
Republican
Total
2024
D
67.5%105,685
30.0%46,932
156,581
2020
D
68.3%117,821
30.3%52,248
172,596
2018
D
63.7%80,773
32.5%41,225
126,783
voter registration
Registered voters
By party of registration, over time
Party registration · 2026D+29.0
vs
Presidential vote · 2024D+33.9
Registration leans Democratic; the presidential vote runs 4.9 points more Republican.
Domestic migration in Trenton-Princeton, NJ in Trenton-Princeton, NJ: net domestic migration by year
Year
Net domestic migration
2011
−3,507
2012
−1,549
2013
−2,137
2014
−3,647
2015
−4,194
2016
−3,848
2017
−3,207
2018
−2,619
2019
−2,997
2021
−5,423
2022
−151
2023
−2,938
2024
−2,811
2025
−2,240
Mercer County's electorate pairs the dense, Democratic-leaning precincts of Trenton's majority-minority neighborhoods with the high-education swing vote concentrated around Princeton, producing consistent but margin-sensitive results in statewide races.
Across the recorded series it reached a Democratic high of 42.5 points in 1964 and a Republican high of 38.0 points in 1896. Between 2020 and 2024 the metro moved 6.5 points toward the Republican candidate; the 2024 margin was 33.9 points.
A population of 385,864, a 43% non-Hispanic-white share, and a median household income of $100,645 describe the metro. The metro's voting pattern over the last decade is most similar to that of San Francisco-Oakland-Fremont, CA and New York-Newark-Jersey City, NY-NJ.
Akashic
Political twins — metros
The metros 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 →
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Trenton-Princeton, NJ, New Jersey. Akashic. https://akashic.app/cbsa/45940/. Accessed May 20, 2026. License: CC BY 4.0.
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How did Trenton-Princeton, NJ, New Jersey vote in 2024?
In 2024, Trenton-Princeton, NJ, New Jersey voted Democratic by 33.9 points (D+33.9), carried by the Democratic candidate. Out of 163,270 votes cast, 107,558 went Democratic and 52,274 went Republican.
When did Trenton-Princeton, NJ, New Jersey last vote Republican?
The most recent presidential election in which Trenton-Princeton, NJ, New Jersey voted Republican was 1984.
How many people live in Trenton-Princeton, NJ, New Jersey?
Trenton-Princeton, NJ, New Jersey has a population of 385,864 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Trenton-Princeton, NJ, New Jersey?
Median household income in Trenton-Princeton, NJ, New Jersey is $100,645 — above the national median of $80,734. The New Jersey state median is $103,556.
What is the political history of Trenton-Princeton, NJ, New Jersey?
Akashic tracks 34 presidential elections in Trenton-Princeton, NJ, New Jersey from 1892 to 2024. Of those, 21 went Democratic and 13 went Republican.
