2025 Nassau County Executive election

2025 Nassau County Executive election

November 4, 2025
 
Nominee Bruce Blakeman Seth Koslow
Party Republican Democratic
Alliance Conservative Moderate
Popular vote 173,636 138,327
Percentage 55.61% 44.30%

Blakeman:      50–60%      60–70%      70–80%      80–90%      >90%
Koslow:      50–60%      60–70%      70–80%      80–90%      >90%
Tie:      50%      No data

County Executive before election

Bruce Blakeman
Republican

Elected County Executive

Bruce Blakeman
Republican

The 2025 Nassau County Executive election was held on November 4, 2025, to elect the County Executive of Nassau County, New York. Incumbent Republican County Executive Bruce Blakeman, first elected in 2021, was re-elected to a second term on the Republican and Conservative ballot lines against challenger Seth Koslow, a county legislator who ran on the Democratic and Moderate ballot lines.