Increases in voter turnout were particularly high Tuesday in areas around New Hampshire's college campuses.
More than 50 percent more ballots were cast this year in Durham, as well as in Keene's first ward, as compared to the last midterm election in 2014.
Those precincts are home to the University of New Hampshire and Keene State College, respectively.
Overall, turnout was up about 17 percent statewide.
Groups like NextGen America, funded by billionaire Democratic activist Tom Steyer, worked for months at UNH, Keene State, Plymouth State University and Dartmouth College to register students.
Voting was up 31 percent in Hanover and 37 percent in Plymouth, again over 2014 levels.
Some students said they were also independently motivated to vote by recent changes in voting laws in New Hampshire, which they perceive as a threat to young voters.