Kentucky Secretary of State Alison Lundergan Grimes estimates 60% of the state's registered voters will cast ballots on Tuesday.
Grimes says that's on par with the turnout from the 2012 presidential election, when 59% of registered voters cast ballots. In 2008, the turnout was 64%.
Grimes says 47,000 people have cast in-person absentee ballots, up from 37,000 at this same time four years ago. The state has also issued 39,700 mail-in absentee ballots, of which 26,000 have been returned.
A record 3.3 million people are registered to vote in Tuesday's election.
