Presidential elections · 2000–2024
Union County, NJ — Presidential Election Results (2000–2024)
In 2024, Union County, New Jersey voted for Kamala D. Harris (Democratic) by D+24.2 — 147,327 Democratic to 89,063 Republican of 240,632 votes cast. From 2020 to 2024 it shifted 11.5 points toward Republicans. That makes it 18.3 points more Democratic than New Jersey overall (D+5.9).
Data: MIT Election Data & Science Lab, Harvard Dataverse.
Margin by election, 2000–2024
Democratic minus Republican, in points of all votes cast — blue bars Democratic, red Republican.
Every election in Union County
| Year | Democratic | Republican | Other | Dem share | Rep share | Margin |
|---|---|---|---|---|---|---|
| 2024 | 147,327 | 89,063 | 4,242 | 61.2% | 37.0% | D+24.2 |
| 2020 | 170,245 | 80,002 | 2,744 | 67.3% | 31.6% | D+35.7 |
| 2016 | 147,414 | 68,114 | 6,447 | 66.4% | 30.7% | D+35.7 |
| 2012 | 139,752 | 68,314 | 1,765 | 66.6% | 32.6% | D+34.0 |
| 2008 | 141,417 | 78,768 | 465 | 64.1% | 35.7% | D+28.4 |
| 2004 | 119,372 | 82,517 | 1,498 | 58.7% | 40.6% | D+18.1 |
| 2000 | 112,003 | 68,554 | 5,816 | 60.1% | 36.8% | D+23.3 |
Union County presidential elections — FAQ
Who carried Union County in the 2024 presidential election?+
Kamala D. Harris (Democratic) carried Union County, New Jersey in 2024 by D+24.2, with 240,632 votes cast. Data: MIT Election Data & Science Lab.
How did Union County shift between 2020 and 2024?+
Union County shifted 11.5 points toward Republicans between 2020 (D+35.7) and 2024 (D+24.2).
Is Union County more Democratic or Republican than New Jersey overall?+
In 2024, Union County went D+24.2 while New Jersey overall went D+5.9 — 18.3 points more Democratic than the state.
Where does this election data come from?+
County-level presidential returns (2000–2024) come from the MIT Election Data and Science Lab (MEDSL), published on the Harvard Dataverse. pumsdata is an independent product that makes the data easy to map and compare, and is not affiliated with MEDSL or Harvard.