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New Jersey

Mercer County, New Jersey presidential election results

In 2024 Kamala Harris won Mercer County by 33.9 points, out of 163,270 votes for president.

Camden (no county figures)Gloucester (no county figures)Passaic (no county figures)Bergen (no county figures)Cape May (no county figures)Essex (no county figures)Hudson (no county figures)Hunterdon (no county figures)Mercer County: Kamala Harris +33.9Ocean (no county figures)Salem (no county figures)Somerset (no county figures)Warren (no county figures)Morris (no county figures)Sussex (no county figures)Atlantic (no county figures)Burlington (no county figures)Cumberland (no county figures)Middlesex (no county figures)Monmouth (no county figures)Union (no county figures)
D+50R+50D+25R+252000: D+27.020002004: D+23.420042008: D+36.420082012: D+37.220122016: D+37.420162020: D+40.220202024: D+33.92024
Mercer County margin: Republican minus Democratic share, in points. Bars above the line lean Republican, below lean Democratic.

2024

New Jersey 2024
TicketVotesShareBar
Kamala Harris Democratic107,55865.9%
Donald J. Trump Republican52,27432.0%
JILL STEIN / SAMSON KPADENOU (Green Party)1,6901.0%
ROBERT F. KENNEDY JR. / NICOLE SHANAHAN (INDEPENDENT)9070.6%
CHASE OLIVER / MIKE TER MAAT (Libertarian Party)3900.2%
CLAUDIA DE LA CRUZ / KARINA GARCIA (Unit SOCIALISM AND LIBERATION)2180.1%
RANDALL A. TERRY / STEPHEN E. BRODEN (U.S. Constitution Party)1030.1%
RACHELE FRUIT / MARGARET TROWE (Unit SOCIALIST WORKERS PARTY)860.1%
JOSEPH KISHORE / JERRY WHITE (SOCIALIST EQUALITY)440.0%
Total163,270

Mercer County was D+33.9 against D+5.9 statewide, 28.0 points more Democratic than the state.

Source: New Jersey Division of Elections, Official List, Candidates for President, For GENERAL ELECTION 11/05/2024 Election (12/05/2024), 10 pages: one page per candidate with tallies by county

2020

New Jersey 2020
TicketVotesShareBar
Joseph R. Biden Democratic122,53269.4%
Donald J. Trump Republican51,64129.2%
JO JORGENSEN (Libertarian Party)1,4270.8%
HOWIE HAWKINS (Green Party)5640.3%
ROQUE "ROCKY" DE LA FUENTE (ALLIANCE PARTY)1360.1%
GLORIA ESTELA LA RIVA (CLEVELAND AVENUE SOCIALISM AND LIBERATION)1250.1%
BILL HAMMONS (CHERISSE DRIVE UNITY PARTY AMERICA)910.1%
DON BLANKENSHIP (CRYSTAL ACRES CONSTITUTION PARTY)880.0%
Total176,604

Mercer County was D+40.2 against D+15.9 statewide, 24.3 points more Democratic than the state.

Source: New Jersey Division of Elections, Official List, Candidates for President, For GENERAL ELECTION 11/03/2020 Election (12/07/2020), 9 pages: one page per candidate with tallies by county

2016

New Jersey 2016
TicketVotesShareBar
Hillary Clinton Democratic104,77566.9%
Donald J. Trump Republican46,19329.5%
Gary Johnson Libertarian Party3,2672.1%
JILL STEIN (Green Party)1,6771.1%
DARRELL CASTLE (CONSTITUTION PARTY)2070.1%
MONICA MOOREHEAD (WORKERS WORLD PARTY)1690.1%
ROCKY ROQUE DE LA FUENTE (AMERICAN DELTA PARTY)1420.1%
ALYSON KENNEDY (SOCIALIST WORKERS PARTY)610.0%
GLORIA LA RIVA (SOCIALISM AND LIBERATION)380.0%
Total156,529

Mercer County was D+37.4 against D+14.1 statewide, 23.3 points more Democratic than the state.

Source: New Jersey Department of State, Division of Elections, Official List, Candidates for President, General Election 11/08/2016 (12/06/2016; 10 pages, one per ticket): county tallies and total; the PDF's text layer is unmapped, so the pages were read as images

2012

New Jersey 2012
TicketVotesShareBar
Barack Obama DEM104,37768.0%
Mitt Romney REP47,35530.8%
All other candidates1,7791.2%
Total153,511

Mercer County was D+37.2 against D+17.7 statewide, 19.5 points more Democratic than the state.

Source: MIT Election Data and Science Lab, County Presidential Election Returns 2000-2016 (compiled from official state election records)

2008

New Jersey 2008
TicketVotesShareBar
Barack Obama DEM107,92668.1%
John McCain REP50,22331.7%
All other candidates4000.3%
Total158,549

Mercer County was D+36.4 against D+15.6 statewide, 20.8 points more Democratic than the state.

Source: MIT Election Data and Science Lab, County Presidential Election Returns 2000-2016 (compiled from official state election records)

2004

New Jersey 2004
TicketVotesShareBar
John Kerry DEM91,58061.3%
George W. Bush REP56,60437.9%
All other candidates1,3260.9%
Total149,510

Mercer County was D+23.4 against D+6.7 statewide, 16.7 points more Democratic than the state.

Source: MIT Election Data and Science Lab, County Presidential Election Returns 2000-2016 (compiled from official state election records)

2000

New Jersey 2000
TicketVotesShareBar
Albert Gore, Jr. DEM83,25661.4%
George W. Bush REP46,67034.4%
All other candidates5,6334.2%
Total135,559

Mercer County was D+27.0 against D+15.8 statewide, 11.2 points more Democratic than the state.

Source: MIT Election Data and Science Lab, County Presidential Election Returns 2000-2016 (compiled from official state election records)

Questions and answers

Who won Mercer County, New Jersey in 2024?

Kamala Harris won Mercer County by 33.9 points, out of 163,270 votes counted for president.

Is Mercer County Republican or Democratic?

Presidential results: 2024: Democratic by 33.9 points; 2020: Democratic by 40.2 points; 2016: Democratic by 37.4 points; 2012: Democratic by 37.2 points; 2008: Democratic by 36.4 points; 2004: Democratic by 23.4 points; 2000: Democratic by 27.0 points.

How does Mercer County vote compared with the rest of New Jersey?

In 2024 it was 28.0 points more Democratic than the state as a whole (Democratic by 33.9 points against Democratic by 5.9 points statewide).

Official results As published by The American Presidency Project (UC Santa Barbara) and the state documents it links. How we use this data