2026 results · New Jersey · county
Mercer County, New Jersey
Booker carried Mercer County by 52.3 points in the Senate race, 18.5 points more Democratic than the 2024 presidential vote here (D+33.9). 3 races have votes counted here.
- Votes counted, Senate
- 116,477
- 71% of the 163,270 votes for president in 2024
- 2026 margin
- D+52.3
- 2024 president
- D+33.9
- Shift from 2024
- 18.5 pts → D
- In New Jersey
- 3rd of 21
- The 3rd best county for Booker of the 21 counted; 5th for turnout against 2024.
Statewide races
- New Jersey SenateCory Booker won · D+27.5 across the state74.7% Cory Booker22.3% Justin MurphyD+52.3116,477 votes18.5 pts → D2024 D+33.9
The House
Mercer County is split between 2 districts; each line is the county’s own part of that district.
- New Jersey 3rd DistrictMercer County's part of the district · Herb Conaway won · D+27.5 across the district68.8% Herb Conaway29.1% Michael McGuireD+39.758,821 votes23.1 pts → D2024 D+16.6
- New Jersey 12th DistrictMercer County's part of the district · Adam Hamawy won · D+42.6 across the district80.0% Adam Hamawy17.4% Gregg MeleD+62.555,712 votes10.6 pts → D2024 D+52.0
Counts come from each race’s official source, named on its own page. Margins are the leading two candidates’ difference in points of all votes counted. 2024 is the presidential vote, Harris against Trump, on the same ground (for a House district, the county’s part of it). A county is not compared with 2024 until a quarter of its 2024 vote is counted. Ranks are among the state’s counties with votes counted in the same race.