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Mercer County, NJ


Metropolitan Statistical Area: Trenton-Princeton, NJ
Designated Market Area: Philadelphia, PA-DE-NJ
USDA County Type (2015): Government
American Communities Project County Type (2023): Urban Suburbs

Places in Mercer County, NJ     [Sort places by name]

 

Tracts in Mercer County, NJ

   



Click here to view demographic data for Mercer County, NJ

2022 population: 380,688   ( 14,175 from 2010 , 6,652 from 2020)
Land area: 224.4 square miles
Population density: 1696.2 persons per square mile

2022 Census data
White:172,078 45.20% 13.9%
Black:73,60619.33% 3.1%
Indian:6200.16% 15.9%
Asian:49,12012.90% 50.3%
2+ races:7,6632.01% 26.6%
Hispanic:77,60120.38% 40.3%
Total non-White:208,61054.80% 25.2%

2020-2022 ComponentsNumberRate
Births:9,059 11.7
Deaths:8,05810.4
Net Migration: -10,526-13.6
Net Immigration: 2,9383.8
Change in White population:-27,831 -7.6
Change in Non-White pop.:42,006 11.5



Historical Presidential Election Results for Mercer County, NJ

Recent Trends
VotesΔ MarginSwing %
2020 vs. 2016 R +5,448 D +12,309 D + 1.9%
D +17,757
2020 vs. 2012 R +4,286 D +13,869 D + 3.1%
D +18,155
2020 vs. 2008 R +1,418 D +13,188 D + 4.2%
D +14,606
2016 vs. 2008 R -4,030 D +879 D + 2.3%
D -3,151
How to interpret this table


Click on the Year to view county-level data for that election.

YearTurnout WinnerRunner-Up OtherTotal Votes Diff
(St) 		Diff
(US) 		PSV
2020 59% Joe Biden (D) 122,532 69.1% Donald Trump* (R) 51,641 29.1% 3,050 [+] 1.7% 177,223 -12 -18 3.88%
2016 53% Hillary Clinton (D) 104,775 66.3% Donald Trump (R) 46,193 29.2% 7,090 [+] 4.5% 158,058 -12 -17 4.05%
2012 54% Barack Obama* (D) 104,377 67.2% Mitt Romney (R) 47,355 30.5% 3,623 [+] 2.3% 155,355 -10 -17 4.25%
2008 57% Barack Obama (D) 107,926 67.3% John McCain (R) 50,223 31.3% 2,229 [+] 1.4% 160,378 -10 -14 4.14%
2004 55% John Kerry (D) 91,580 61.3% George W. Bush* (R) 56,604 37.9% 1,326 [+] 0.9% 149,510 -8 -13 4.14%
2000 51% Albert Gore, Jr. (D) 83,256 61.4% George W. Bush (R) 46,670 34.4% 5,633 [+] 4.2% 135,559 -6 -13 4.25%
1996 50% Bill Clinton* (D) 77,641 58.9% Robert Dole (R) 40,559 30.8% 13,526 [+] 10.3% 131,726 -5 -10 4.28%
1992 57% Bill Clinton (D) 71,383 49.1% George Bush* (R) 50,473 34.7% 23,404 [+] 16.1% 145,260 -6 -3 4.34%
1988 55% Michael Dukakis (D) 68,712 50.8% George Bush (R) 65,384 48.3% 1,249 [+] 0.9% 135,345 -8 -5 4.37%
1984 58% Ronald Reagan* (R) 71,195 51.5% Walter Mondale (D) 66,398 48.1% 528 0.4% 138,121 -9 -7 4.29%
1980 56% Jimmy Carter* (D) 60,888 47.4% Ronald Reagan (R) 53,450 41.6% 14,244 [+] 11.1% 128,582 -10 -9 4.32%
1976 61% Jimmy Carter (D) 69,621 53.2% Gerald Ford* (R) 58,453 44.7% 2,782 [+] 2.1% 130,856 -5 -3 4.34%
1972 62% Richard Nixon* (R) 69,303 52.0% George McGovern (D) 62,180 46.7% 1,708 [+] 1.3% 133,191 -10 -9 4.44%
1968 65% Hubert Humphrey (D) 63,218 50.4% Richard Nixon (R) 45,354 36.1% 16,957 [+] 13.5% 125,529 -10 -7 4.37%
1964 66% Lyndon Johnson* (D) 86,985 71.2% Barry Goldwater (R) 35,081 28.7% 148 0.1% 122,214 -5 -10 4.29%
1960 70% John Kennedy (D) 74,166 61.2% Richard Nixon (R) 46,924 38.7% 179 0.1% 121,269 -10 -11 4.37%
1956 62% Dwight Eisenhower* (R) 56,029 51.4% Adlai Stevenson (D) 52,684 48.3% 392 0.4% 109,105 -13 -6 4.39%
1952 65% Adlai Stevenson (D) 57,751 53.1% Dwight Eisenhower (R) 50,423 46.4% 488 0.4% 108,662 -10 -9 4.49%
1948 58% Harry Truman* (D) 49,690 55.6% Thomas Dewey (R) 37,794 42.3% 1,952 [+] 2.2% 89,436 -8 -3 4.59%
1944 62% Franklin Roosevelt* (D) 52,383 58.6% Thomas Dewey (R) 36,844 41.2% 144 0.2% 89,371 -8 -5 4.55%
1940 64% Franklin Roosevelt* (D) 50,121 57.3% Wendell Willkie (R) 37,190 42.5% 222 0.3% 87,533 -5 -2 4.44%
1936 63% Franklin Roosevelt* (D) 47,702 61.5% Alf Landon (R) 29,283 37.8% 579 [+] 0.7% 77,564 -2 1 4.26%
1932 56% Herbert Hoover* (R) 33,715 50.4% Franklin Roosevelt (D) 30,284 45.3% 2,880 [+] 4.3% 66,879 3 11 4.10%
1928 63% Herbert Hoover (R) 41,056 59.2% Al Smith (D) 27,908 40.2% 374 [+] 0.5% 69,338 -1 1 4.48%
1924 50% Calvin Coolidge (R) 30,689 59.5% John Davis (D) 14,639 28.4% 6,223 [+] 12.1% 51,551 -3 6 4.74%
1920 48% Warren Harding (R) 29,626 63.5% James Cox (D) 15,713 33.7% 1,344 [+] 2.9% 46,683 -4 3 5.13%
1916 29% Charles Evans Hughes (R) 14,213 55.8% Woodrow Wilson* (D) 10,621 41.7% 659 [+] 2.6% 25,493 1 10 5.16%
1912 26% Woodrow Wilson (D) 7,773 36.8% Theodore Roosevelt (Prog) 6,907 32.7% 6,440 [+] 30.5% 21,120 6 4 4.88%
1908 35% William Taft (R) 14,941 59.0% William J. Bryan (D) 9,289 36.7% 1,100 [+] 4.3% 25,330 2 7 5.42%
1904 38% Theodore Roosevelt (R) 14,900 60.6% Alton Parker (D) 8,527 34.7% 1,158 [+] 4.7% 24,585 4 4 5.69%
1900 40% William McKinley* (R) 13,874 61.7% William J. Bryan (D) 7,858 34.9% 766 [+] 3.4% 22,498 6 10 5.61%
* incumbent         PSV: percent of state vote



2020 President, Mercer County, NJ
CandidateVotesPct
Joe Biden (D) 122,532 69.1%
Donald Trump* (R) 51,641 29.1%
Jo Jorgensen (Lbt) 1,427 0.8%
Other 1,623 0.9%
TOTAL 177,223
Turnout: 59% Diff (St): -12 Diff (US): -18


2016 President, Mercer County, NJ
CandidateVotesPct
Hillary Clinton (D) 104,775 66.3%
Donald Trump (R) 46,193 29.2%
Gary Johnson (Lbt) 3,267 2.1%
Jill Stein (Grn) 1,677 1.1%
Other 2,146 1.4%
TOTAL 158,058
Turnout: 53% Diff (St): -12 Diff (US): -17


2012 President, Mercer County, NJ
CandidateVotesPct
Barack Obama* (D) 104,377 67.2%
Mitt Romney (R) 47,355 30.5%
Gary Johnson (Lbt) 915 0.6%
Other 2,708 1.7%
TOTAL 155,355
Turnout: 54% Diff (St): -10 Diff (US): -17


2008 President, Mercer County, NJ
CandidateVotesPct
Barack Obama (D) 107,926 67.3%
John McCain (R) 50,223 31.3%
Ralph Nader (I) 1,110 0.7%
Bob Barr (Lbt) 380 0.2%
Other 739 0.5%
TOTAL 160,378
Turnout: 57% Diff (St): -10 Diff (US): -14


2004 President, Mercer County, NJ
CandidateVotesPct
George W. Bush* (R) 56,604 37.9%
John Kerry (D) 91,580 61.3%
Ralph Nader (I) 833 0.6%
Other 493 0.3%
TOTAL 149,510
Turnout: 55% Diff (St): -8 Diff (US): -13


2000 President, Mercer County, NJ
CandidateVotesPct
George W. Bush (R) 46,670 34.4%
Albert Gore, Jr. (D) 83,256 61.4%
Ralph Nader (Grn) 4,561 3.4%
Pat Buchanan (Ref) 274 0.2%
Other 798 0.6%
TOTAL 135,559
Turnout: 51% Diff (St): -6 Diff (US): -13


1996 President, Mercer County, NJ
CandidateVotesPct
Bill Clinton* (D) 77,641 58.9%
Robert Dole (R) 40,559 30.8%
Ross Perot (Ref) 10,536 8.0%
Ralph Nader (Grn) 1,729 1.3%
Harry Browne (Lbt) 781 0.6%
Other 480 0.4%
TOTAL 131,726
Turnout: 50% Diff (St): -5 Diff (US): -10


1992 President, Mercer County, NJ
CandidateVotesPct
Bill Clinton (D) 71,383 49.1%
George Bush* (R) 50,473 34.7%
Ross Perot (I) 22,503 15.5%
Other 901 0.6%
TOTAL 145,260
Turnout: 57% Diff (St): -6 Diff (US): -3


1988 President, Mercer County, NJ
CandidateVotesPct
George Bush (R) 65,384 48.3%
Michael Dukakis (D) 68,712 50.8%
Ron Paul (Lbt) 359 0.3%
Other 890 0.7%
TOTAL 135,345
Turnout: 55% Diff (St): -8 Diff (US): -5


1984 President, Mercer County, NJ
CandidateVotesPct
Ronald Reagan* (R) 71,195 51.5%
Walter Mondale (D) 66,398 48.1%
Other 528 0.4%
TOTAL 138,121
Turnout: 58% Diff (St): -9 Diff (US): -7


1980 President, Mercer County, NJ
CandidateVotesPct
Ronald Reagan (R) 53,450 41.6%
Jimmy Carter* (D) 60,888 47.4%
John Anderson (I) 12,117 9.4%
Edward Clark (Lbt) 1,153 0.9%
Other 974 0.8%
TOTAL 128,582
Turnout: 56% Diff (St): -10 Diff (US): -9


1976 President, Mercer County, NJ
CandidateVotesPct
Jimmy Carter (D) 69,621 53.2%
Gerald Ford* (R) 58,453 44.7%
Eugene McCarthy (I) 1,926 1.5%
Other 856 0.7%
TOTAL 130,856
Turnout: 61% Diff (St): -5 Diff (US): -3


1972 President, Mercer County, NJ
CandidateVotesPct
Richard Nixon* (R) 69,303 52.0%
George McGovern (D) 62,180 46.7%
John Schmitz (Amer) 1,211 0.9%
Other 497 0.4%
TOTAL 133,191
Turnout: 62% Diff (St): -10 Diff (US): -9


1968 President, Mercer County, NJ
CandidateVotesPct
Richard Nixon (R) 45,354 36.1%
Hubert Humphrey (D) 63,218 50.4%
George Wallace (AIP) 16,104 12.8%
Other 853 0.7%
TOTAL 125,529
Turnout: 65% Diff (St): -10 Diff (US): -7


1964 President, Mercer County, NJ
CandidateVotesPct
Lyndon Johnson* (D) 86,985 71.2%
Barry Goldwater (R) 35,081 28.7%
Other 148 0.1%
TOTAL 122,214
Turnout: 66% Diff (St): -5 Diff (US): -10


1960 President, Mercer County, NJ
CandidateVotesPct
John Kennedy (D) 74,166 61.2%
Richard Nixon (R) 46,924 38.7%
Other 179 0.1%
TOTAL 121,269
Turnout: 70% Diff (St): -10 Diff (US): -11


1956 President, Mercer County, NJ
CandidateVotesPct
Dwight Eisenhower* (R) 56,029 51.4%
Adlai Stevenson (D) 52,684 48.3%
Other 392 0.4%
TOTAL 109,105
Turnout: 62% Diff (St): -13 Diff (US): -6


1952 President, Mercer County, NJ
CandidateVotesPct
Dwight Eisenhower (R) 50,423 46.4%
Adlai Stevenson (D) 57,751 53.1%
Other 488 0.4%
TOTAL 108,662
Turnout: 65% Diff (St): -10 Diff (US): -9


1948 President, Mercer County, NJ
CandidateVotesPct
Harry Truman* (D) 49,690 55.6%
Thomas Dewey (R) 37,794 42.3%
Henry Wallace (Prog) 1,451 1.6%
Other 501 0.6%
TOTAL 89,436
Turnout: 58% Diff (St): -8 Diff (US): -3


1944 President, Mercer County, NJ
CandidateVotesPct
Franklin Roosevelt* (D) 52,383 58.6%
Thomas Dewey (R) 36,844 41.2%
Other 144 0.2%
TOTAL 89,371
Turnout: 62% Diff (St): -8 Diff (US): -5


1940 President, Mercer County, NJ
CandidateVotesPct
Franklin Roosevelt* (D) 50,121 57.3%
Wendell Willkie (R) 37,190 42.5%
Other 222 0.3%
TOTAL 87,533
Turnout: 64% Diff (St): -5 Diff (US): -2


1936 President, Mercer County, NJ
CandidateVotesPct
Franklin Roosevelt* (D) 47,702 61.5%
Alf Landon (R) 29,283 37.8%
William Lemke (Union) 293 0.4%
Norman Thomas (Soc) 151 0.2%
Other 135 0.2%
TOTAL 77,564
Turnout: 63% Diff (St): -2 Diff (US): 1


1932 President, Mercer County, NJ
CandidateVotesPct
Franklin Roosevelt (D) 30,284 45.3%
Herbert Hoover* (R) 33,715 50.4%
Norman Thomas (Soc) 2,606 3.9%
Other 274 0.4%
TOTAL 66,879
Turnout: 56% Diff (St): 3 Diff (US): 11


1928 President, Mercer County, NJ
CandidateVotesPct
Herbert Hoover (R) 41,056 59.2%
Al Smith (D) 27,908 40.2%
Norman Thomas (Soc) 231 0.3%
Other 143 0.2%
TOTAL 69,338
Turnout: 63% Diff (St): -1 Diff (US): 1


1924 President, Mercer County, NJ
CandidateVotesPct
Calvin Coolidge (R) 30,689 59.5%
John Davis (D) 14,639 28.4%
Robert LaFollette (Prog) 6,067 11.8%
Other 156 0.3%
TOTAL 51,551
Turnout: 50% Diff (St): -3 Diff (US): 6


1920 President, Mercer County, NJ
CandidateVotesPct
Warren Harding (R) 29,626 63.5%
James Cox (D) 15,713 33.7%
Eugene Debs (Soc) 1,169 2.5%
Parley Christiansen (FL) 41 0.1%
Aaron Watkins (Proh) 69 0.1%
Other 65 0.1%
TOTAL 46,683
Turnout: 48% Diff (St): -4 Diff (US): 3


1916 President, Mercer County, NJ
CandidateVotesPct
Woodrow Wilson* (D) 10,621 41.7%
Charles Evans Hughes (R) 14,213 55.8%
Allan Benson (Soc) 460 1.8%
James Hanly (Proh) 154 0.6%
Other 45 0.2%
TOTAL 25,493
Turnout: 29% Diff (St): 1 Diff (US): 10


1912 President, Mercer County, NJ
CandidateVotesPct
Woodrow Wilson (D) 7,773 36.8%
Theodore Roosevelt (Prog) 6,907 32.7%
William Taft* (R) 5,676 26.9%
Eugene Debs (Soc) 586 2.8%
Eugene Chafin (Proh) 105 0.5%
Other 73 0.3%
TOTAL 21,120
Turnout: 26% Diff (St): 6 Diff (US): 4


1908 President, Mercer County, NJ
CandidateVotesPct
William Taft (R) 14,941 59.0%
William J. Bryan (D) 9,289 36.7%
Eugene Debs (Soc) 688 2.7%
Eugene Chafin (Proh) 284 1.1%
Thomas Hisgen (I) 62 0.2%
Other 66 0.3%
TOTAL 25,330
Turnout: 35% Diff (St): 2 Diff (US): 7


1904 President, Mercer County, NJ
CandidateVotesPct
Theodore Roosevelt (R) 14,900 60.6%
Alton Parker (D) 8,527 34.7%
Eugene Debs (Soc) 586 2.4%
Silas Swallow (Proh) 335 1.4%
Thomas Watson (Pop) 119 0.5%
Other 118 0.5%
TOTAL 24,585
Turnout: 38% Diff (St): 4 Diff (US): 4


1900 President, Mercer County, NJ
CandidateVotesPct
William McKinley* (R) 13,874 61.7%
William J. Bryan (D) 7,858 34.9%
Other 766 3.4%
TOTAL 22,498
Turnout: 40% Diff (St): 6 Diff (US): 10
* incumbent

Historical Statewide Election Results for Mercer County, NJ

Click on the Year to view county-level data for that election.

YearTypeTurnout WinnerRunner-Up OtherTotal VotesDiff PSV
2021 G 34% Phil Murphy* (D) 66,151 65.1% Jack Ciattarelli (R) 34,617 34.1% 857 [+] 0.8% 101,625 -14 3.89%
2020 S2 57% Cory Booker* (D) 117,821 68.2% Rik Mehta (R) 52,248 30.3% 2,593 [+] 1.5% 172,662 -11 3.89%
2018 S1 42% Robert Menendez* (D) 80,773 63.7% Bob Hugin (R) 41,225 32.5% 4,865 [+] 3.8% 126,863 -10 4.00%
2017 G 31% Phil Murphy (D) 59,992 64.8% Kim Guadagno (R) 30,645 33.1% 1,948 [+] 2.1% 92,585 -9 4.31%
2014 S2 27% Cory Booker* (D) 52,476 65.8% Jeffrey Bell (R) 25,749 32.3% 1,524 [+] 1.9% 79,749 -10 4.27%
2013 S2 20% Cory Booker (D) 38,934 65.8% Steve Lonegan (R) 18,576 31.4% 1,682 [+] 2.8% 59,192 -13 4.38%
2013 G 32% Chris Christie* (R) 48,530 51.9% Barbara Buono (D) 43,282 46.3% 1,687 [+] 1.8% 93,499 -8 4.40%
2012 S1 50% Robert Menendez* (D) 97,964 67.7% Joe Kyrillos (R) 43,793 30.3% 2,890 [+] 2.0% 144,647 -9 4.28%
2009 G 36% Jon Corzine* (D) 55,199 54.5% Chris Christie (R) 39,769 39.3% 6,353 [+] 6.3% 101,321 -9 4.18%
2008 S2 52% Frank Lautenberg* (D) 91,088 62.2% Dick Zimmer (R) 52,298 35.7% 3,004 [+] 2.1% 146,390 -6 4.20%
2006 S1 34% Robert Menendez (D) 56,111 60.0% Tom Kean, Jr. (R) 34,958 37.4% 2,435 [+] 2.6% 93,504 -7 4.16%
2005 G 36% Jon Corzine (D) 56,592 57.1% Doug Forrester (R) 38,871 39.2% 3,596 [+] 3.6% 99,059 -4 4.33%
2002 S2 34% Frank Lautenberg (D) 53,675 57.6% Doug Forrester (R) 37,195 39.9% 2,338 [+] 2.5% 93,208 -2 4.18%
2001 G 35% Jim McGreevey (D) 57,513 60.9% Bret Schundler (R) 31,705 33.6% 5,148 [+] 5.5% 94,366 -8 4.24%
2000 S1 48% Jon Corzine (D) 72,250 56.0% Bob Franks (R) 53,542 41.5% 3,236 [+] 2.5% 129,028 -6 4.28%
1997 G 41% Jim McGreevey (D) 54,977 50.9% Christine Todd Whitman* (R) 44,056 40.8% 8,905 [+] 8.3% 107,938 -6 4.46%
1996 S2 47% Robert Torricelli (D) 67,867 55.3% Dick Zimmer (R) 48,829 39.8% 6,110 [+] 5.0% 122,806 -3 4.26%
1994 S1 33% Frank Lautenberg* (D) 46,175 53.8% Chuck Haytaian (R) 37,266 43.4% 2,432 [+] 2.8% 85,873 -4 4.18%
1993 G 43% Christine Todd Whitman (R) 57,599 52.0% Jim Florio* (D) 50,840 45.9% 2,407 [+] 2.2% 110,846 3 4.42%
1990 S2 34% Bill Bradley* (D) 45,036 52.3% Christine Todd Whitman (R) 39,570 45.9% 1,535 [+] 1.8% 86,141 -1 4.44%
1989 G 40% Jim Florio (D) 67,962 68.5% Jim Courter (R) 29,887 30.1% 1,359 [+] 1.4% 99,208 -7 4.40%
1988 S1 53% Frank Lautenberg* (D) 80,569 61.8% Pete Dawkins (R) 49,122 37.7% 724 [+] 0.6% 130,415 -8 4.37%
1985 G 35% Tom Kean* (R) 53,562 63.2% Peter Shapiro (D) 30,212 35.6% 994 [+] 1.2% 84,768 -6 4.30%
1984 S2 55% Bill Bradley* (D) 94,782 72.0% Mary Mochary (R) 35,745 27.2% 1,036 [+] 0.8% 131,563 -8 4.25%
1982 S1 42% Frank Lautenberg (D) 52,593 54.1% Millicent Fenwick (R) 43,431 44.7% 1,171 [+] 1.2% 97,195 -3 4.43%
1981 G 42% Jim Florio (D) 53,897 54.8% Tom Kean (R) 43,156 43.8% 1,378 [+] 1.4% 98,431 -6 4.25%
1978 S2 39% Bill Bradley (D) 51,579 60.6% Jeffrey Bell (R) 32,736 38.5% 750 [+] 0.9% 85,065 -5 4.35%
1977 G 46% Brendan Byrne* (D) 65,371 65.3% Raymond Bateman (R) 32,994 32.9% 1,810 [+] 1.8% 100,175 -9 4.71%
1976 S1 56% Harrison Williams* (D) 77,959 64.9% David Norcross (R) 40,883 34.1% 1,220 [+] 1.0% 120,062 -4 4.33%
1973 G 44% Brendan Byrne (D) 71,527 76.3% Charles Sandman (R) 20,859 22.3% 1,314 [+] 1.4% 93,700 -10 4.42%
1972 S2 56% Clifford Case* (R) 74,504 62.6% Paul Krebs (D) 41,697 35.0% 2,906 [+] 2.4% 119,107 0 4.27%
1970 S1 45% Harrison Williams* (D) 53,084 58.7% Nelson Gross (R) 35,881 39.7% 1,427 [+] 1.6% 90,392 -2 4.22%
1969 G 52% William Cahill (R) 52,041 51.3% Robert Meyner (D) 47,421 46.7% 1,995 [+] 2.0% 101,457 -8 4.29%
1966 S2 46% Clifford Case* (R) 51,402 59.3% Warren Wilentz (D) 33,696 38.9% 1,615 [+] 1.9% 86,713 -1 4.07%
1965 G 52% Richard Hughes* (D) 62,835 65.0% Wayne Dumont (R) 33,206 34.3% 634 [+] 0.7% 96,675 -7 4.34%
1964 S1 62% Harrison Williams* (D) 77,648 68.4% Bernard Stanley (R) 35,126 30.9% 749 [+] 0.7% 113,523 -6 4.19%
1961 G 56% Richard Hughes (D) 61,550 61.9% James Mitchell (R) 37,444 37.6% 473 [+] 0.5% 99,467 -11 4.62%
1960 S2 67% Thorn Lord (D) 61,579 52.8% Clifford Case* (R) 54,715 46.9% 355 [+] 0.3% 116,649 -9 4.38%
*: incumbent               +: ran on additional party lines               Type: G: Governor; S1,S2,S3: Senate Class 1, 2 or 3
italics: special election           RO: runoff election           PSV: percent of state vote


Historical U.S. House Election Results for Mercer County, NJ

Click on the District to view county-level data for that election (where available).

DateDistrictWinnerRunner-Up OtherTotal Votes
2022-11-08 NJ03Andy Kim* (D) 31,901 60.5% Bob Healey (R) 20,261 38.4% 547 1.0% 52,709
2022-11-08 NJ12Bonnie Watson Coleman* (D) 34,642 77.0% Darius Mayfield (R) 9,906 22.0% 454 1.0% 45,002
County Total for 2022-11-08:   97,711
2020-11-03 NJ04Chris Smith* (R) 29,298 51.8% Stephanie Schmid (D) 26,329 46.6% 904 1.6% 56,531
2020-11-03 NJ12Bonnie Watson Coleman* (D) 85,492 74.1% Mark Razzoli (R) 27,531 23.9% 2,385 2.1% 115,408
County Total for 2020-11-03:   171,939
2018-11-06 NJ04Josh Welle (D) 19,795 49.7% Chris Smith* (R) 19,049 47.9% 964 2.4% 39,808
2018-11-06 NJ12Bonnie Watson Coleman* (D) 66,323 76.7% Daryl Kipnis (R) 20,157 23.3% 0 0.0% 86,480
County Total for 2018-11-06:   126,288
2016-11-08 NJ04Chris Smith* (R) 27,988 59.5% Lorna Phillipson (D) 18,382 39.1% 632 1.3% 47,002
2016-11-08 NJ12Bonnie Watson Coleman* (D) 70,757 70.7% Steven Uccio (R) 24,165 24.1% 5,187 5.2% 100,109
County Total for 2016-11-08:   147,111
2014-11-04 NJ04Chris Smith* (R) 15,630 65.3% Ruben Scolavino (D) 7,948 33.2% 342 1.4% 23,920
2014-11-04 NJ12Bonnie Watson Coleman (D) 38,168 69.0% Alieta Eck (R) 15,739 28.5% 1,404 2.5% 55,311
County Total for 2014-11-04:   79,231
2012-11-06 NJ04Chris Smith* (R) 27,751 61.8% Brian Froelich (D) 16,727 37.3% 418 0.9% 44,896
2012-11-06 NJ12Rush Holt* (D) 76,107 76.7% Eric Beck (R) 21,986 22.2% 1,100 1.1% 99,193
County Total for 2012-11-06:   144,089
2010-11-02 NJ04Chris Smith* (R) 25,146 61.2% Howard Kleinhendler (D) 14,887 36.2% 1,084 2.6% 41,117
2010-11-02 NJ12Rush Holt* (D) 39,046 69.8% Scott Sipprelle (R) 16,408 29.4% 449 0.8% 55,903
County Total for 2010-11-02:   97,020
2008-11-04 NJ04Chris Smith* (R) 40,766 59.9% Joshua Zeitz (D) 26,897 39.5% 438 0.6% 68,101
2008-11-04 NJ12Rush Holt* (D) 60,645 76.6% Alan Bateman (R) 17,766 22.4% 738 0.9% 79,149
County Total for 2008-11-04:   147,250
2006-11-07 NJ04Chris Smith* (R) 25,153 61.5% Carol Gay (D) 15,324 37.5% 428 1.0% 40,905
2006-11-07 NJ12Rush Holt* (D) 30,556 72.5% Joseph Sinagra (R) 11,585 27.5% 0 0.0% 42,141
County Total for 2006-11-07:   83,046
2004-11-02 NJ04Chris Smith* (R) 40,634 62.6% Amy Vasquez (D) 23,895 36.8% 419 0.6% 64,948
2004-11-02 NJ12Rush Holt* (D) 54,854 72.1% Bill Spadea (R) 20,399 26.8% 875 1.1% 76,128
County Total for 2004-11-02:   141,076
2002-11-05 NJ04Chris Smith* (R) 26,702 64.8% Mary Brennan (D) 13,936 33.8% 571 1.4% 41,209
2002-11-05 NJ12Rush Holt* (D) 34,585 68.0% Buster Soaries (R) 15,151 29.8% 1,100 2.2% 50,836
County Total for 2002-11-05:   92,045
2000-11-07 NJ04Chris Smith* (R) 39,438 55.3% Reed Gusciora (D) 30,444 42.7% 1,488 2.1% 71,370
2000-11-07 NJ12Rush Holt* (D) 35,067 60.9% Dick Zimmer (R) 20,908 36.3% 1,595 2.8% 57,570
County Total for 2000-11-07:   128,940
1998-11-03 NJ04Chris Smith* (R) 22,860 54.1% Larry Schneider (D) 18,200 43.1% 1,187 2.8% 42,247
1998-11-03 NJ12Rush Holt (D) 23,240 60.5% Michael Pappas* (R) 14,188 36.9% 977 2.5% 38,405
County Total for 1998-11-03:   80,652
1996-11-05 NJ04Chris Smith* (R) 39,251 57.0% Kevin Meara (D) 27,875 40.5% 1,763 2.6% 68,889
1996-11-05 NJ12David Delvecchio (D) 30,086 57.3% Michael Pappas (R) 21,067 40.1% 1,357 2.6% 52,510
County Total for 1996-11-05:   121,399
1994-11-08 NJ04Chris Smith* (R) 30,214 64.4% Ralph Walsh (D) 16,132 34.4% 596 1.3% 46,942
1994-11-08 NJ12Dick Zimmer* (R) 22,908 60.9% Joseph Youssouf (D) 14,247 37.9% 440 1.2% 37,595
County Total for 1994-11-08:   84,537
1992-11-03 NJ04Chris Smith* (R) 42,611 56.3% Brian Hughes (D) 31,344 41.4% 1,667 2.2% 75,622
1992-11-03 NJ12Dick Zimmer* (R) 29,466 54.9% Frank Abate (D) 18,327 34.1% 5,883 11.0% 53,676
County Total for 1992-11-03:   129,298
*: incumbent           sp: special election           RO: runoff election

Voter Registration Data for Mercer County, NJ

YearTotalRepublicanDemocratOtherR/D EdgeR/D Edge %VAPOP %
2023 260,851 40,999 15.7% 118,114 45.3% 101,738 39.0% Dem +77,115 Dem +29.6% 86%
2022 263,508 41,403 15.7% 120,183 45.6% 101,922 38.7% Dem +78,780 Dem +29.9% 87%
2020 262,083 40,153 15.3% 116,910 44.6% 105,020 40.1% Dem +76,757 Dem +29.3% 87%
2018 243,716 36,830 15.1% 105,321 43.2% 101,565 41.7% Dem +68,491 Dem +28.1% 82%
2016 235,496 35,239 15.0% 97,702 41.5% 102,555 43.5% Dem +62,463 Dem +26.5% 80%
2014 222,668 32,010 14.4% 84,168 37.8% 106,490 47.8% Dem +52,158 Dem +23.4% 77%
2012 226,330 32,702 14.4% 83,978 37.1% 109,650 48.4% Dem +51,276 Dem +22.7% 79%
2010 217,818 32,634 15.0% 82,412 37.8% 102,772 47.2% Dem +49,778 Dem +22.9% 77%
2008 222,154 32,390 14.6% 83,372 37.5% 106,392 47.9% Dem +50,982 Dem +22.9% 79%
2006 200,996 26,343 13.1% 50,898 25.3% 123,755 61.6% Dem +24,555 Dem +12.2% 73%
2004 208,067 26,621 12.8% 53,333 25.6% 128,113 61.6% Dem +26,712 Dem +12.8% 76%
2002 193,138 27,577 14.3% 53,624 27.8% 111,937 58.0% Dem +26,047 Dem +13.5% 71%
2000 198,099 27,443 13.9% 56,374 28.5% 114,282 57.7% Dem +28,931 Dem +14.6% 74%
1998 193,085 27,388 14.2% 55,628 28.8% 110,069 57.0% Dem +28,240 Dem +14.6% 73%
1994 167,166 27,287 16.3% 54,767 32.8% 85,112 50.9% Dem +27,480 Dem +16.4% 65%
1986 164,950 24,238 14.7% 64,644 39.2% 76,068 46.1% Dem +40,406 Dem +24.5% 68%
VAPOP% is the estimated percentage of voting age population that is registered.
Registration data may include "inactive" voters.   Data for each year pertains to the November elections.