Mercer County, New Jersey: null
New Jersey · Presidential Elections 1892–2024
D+33.8
2024 Margin
R+6.6%
2020→2024 Swing
D since 1988
Voting Streak
Classification
387K
Population
Mercer County, New Jersey voted D+33.8 for Kamala Harris in 2024, with Harris receiving 107,558 votes (65.67%). This represented a R+6.6% swing toward Republicans compared to 2020. The county has voted Democratic in every presidential election since 1988.
Electoral Behavior
Volatility
4.7
Elasticity
Responsive
Trend
+0.6/yr
Quick Stats
2024 ResultD+33.8
2020→2024 SwingR+6.6%
Voting StreakD since 1988
Elections on Record34
Demographics
Population387,340
Median Age
39.3(US: 38.4)
College (BA+)
44.9%(US: 34.6%)
Median Income
$92,697(US: $78k)
White (non-Hisp)
44.2%(US: 57.5%)
Hispanic
22.3%(US: 18.6%)
Black
19.4%(US: 12.3%)
Asian
12.2%(US: 5.7%)
Homeownership
61.9%(US: 64.2%)
Poverty Rate
11.1%(US: 12.4%)
Veterans
3.6%(US: 6.4%)
Non-English (CVAP)
23.3%(US: 17.1%)
Presidential Elections
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2024 | 65.7%(107,558) | 31.9%(52,274) | D+33.8 | -6.6 |
| 2020 | 69.8%(122,532) | 29.4%(51,641) | D+40.4 | +3.3 |
| 2016 | 66.3%(104,775) | 29.2%(46,193) | D+37.1 | +0.4 |
| 2012 | 67.2%(104,377) | 30.5%(47,355) | D+36.7 | +0.6 |
| 2008 | 67.4%(107,926) | 31.4%(50,223) | D+36.1 | +12.7 |
| 2004 | 61.3%(91,580) | 37.9%(56,604) | D+23.4 | -3.6 |
| 2000 | 61.4%(83,256) | 34.4%(46,670) | D+27.0 | -1.2 |
| 1996 | 58.9%(77,641) | 30.8%(40,559) | D+28.1 | +13.8 |
| 1992 | 49.1%(71,383) | 34.8%(50,473) | D+14.4 | +11.9 |
| 1988 | 50.8%(68,712) | 48.3%(65,384) | D+2.5 | +5.9 |
Senate Elections
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2024 | 67.5%(105,685) | 30.0%(46,932) | D+37.5 | -0.5 |
| 2020 | 68.3%(117,821) | 30.3%(52,248) | D+38.0 | +6.8 |
| 2018 | 63.7%(80,773) | 32.5%(41,225) | D+31.2 | -2.3 |
| 2014 | 65.8%(52,476) | 32.3%(25,749) | D+33.5 | -1.1 |
| 2013 | 66.2%(38,934) | 31.6%(18,576) | D+34.6 | -2.8 |
| 2012 | 67.7%(97,964) | 30.3%(43,793) | D+37.5 | +11.0 |
| 2008 | 62.2%(91,088) | 35.7%(52,298) | D+26.5 | +3.9 |
| 2006 | 60.0%(56,111) | 37.4%(34,958) | D+22.6 | +4.9 |
| 2002 | 57.6%(53,675) | 39.9%(37,195) | D+17.7 | +3.2 |
| 2000 | 56.0%(72,250) | 41.5%(53,542) | D+14.5 | -1.0 |
Governor Elections
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2025 | 71.2%(91,713) | 28.1%(36,156) | D+43.2 | +11.4 |
| 2017 | 64.9%(59,992) | 33.1%(30,645) | D+31.7 | +37.4 |
| 2013 | 46.3%(43,282) | 51.9%(48,530) | R+5.6 | -20.9 |
| 2009 | 54.5%(55,199) | 39.3%(39,769) | D+15.2 | -2.7 |
| 2005 | 57.1%(56,592) | 39.2%(38,871) | D+17.9 | -9.5 |
| 2001 | 61.0%(57,513) | 33.6%(31,705) | D+27.4 | +17.2 |
| 1997 | 50.9%(54,977) | 40.8%(44,056) | D+10.1 | +16.2 |
| 1993 | 45.9%(50,840) | 52.0%(57,599) | R+6.1 | -44.5 |
| 1989 | 68.5%(67,962) | 30.1%(29,887) | D+38.4 | +65.9 |
| 1985 | 35.6%(30,212) | 63.2%(53,562) | R+27.6 | -38.5 |