Trenton-Princeton, NJ · which candidate this place backed in each party’s presidential nominating contest, cycle by cycle. A primary is a contest inside one party, so it has no Democratic–Republican margin and is not part of the general-election record above.
Akashic reports votes cast, not delegates awarded. The two can disagree: Clinton led the 2008 national primary popular vote by less than half a point and did not win the nomination.
Primary returns are published at county grain, and this place is a single county: Mercer County, New Jersey. The figures below are that county’s, which is the same territory — not a larger unit standing in for it.
Presidential nominating contests in Trenton-Princeton, NJ, by party and cycle.
○no contest record — Akashic holds no result for that party and cycle here. It is not a claim that no contest was held. Telling apart a contest that was cancelled, one that went uncontested, and one simply not yet ingested needs a nominating-contest calendar, which is a separate ingest from results and does not exist yet.
Republican presidential primaries are not yet ingested — the Republican series runs from 1856 and is in scope. The row is kept so its absence is visible: a Democratic-only panel would otherwise read as though no one else held a contest.
Akashic carries 10 states for 2012 and 3 states for 2024. Cycles in which an incumbent president seeks renomination are thin by nature — few states run a contested primary — so a sparse column is politics, not a hole in the record.
County returns carry a leader and a lead over the runner-up, and nothing more. The full candidate field with vote shares is published at state grain — follow a cycle above to the state contest for it.
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 Democratic than the rolls.
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 →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Trenton-Princeton, NJ, New Jersey. Akashic. https://akashic.app/cbsa/45940/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Embed this page
A live widget for your site — no API key, attribution built in, CC BY 4.0. All widgets & sizes →
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.
