Sonoma County's Registrar of Voters Janice Atkinson is predicting an 85 percent turnout in the presidential general election.
Sonoma County had the highest voter turnout in the state in the 2008 election, with 93.4 percent of registered citizens casting their votes, Atkinson told Patch. The 2004 presidential election drew 89 percent of the county's registered voters.
Atkinson said the prediction is based on "the level of excitement out there" and the number of mail ballots coming in.
"We pride ourselves on getting the mail ballots out and getting them back in time. Our voters like to vote this way," she said. "It's popular throughout the state."
Atkinson said the county also prides itself on the level of interest that residents take in voting.
"We've got a bit of a competition with Marin," she said. "It's great that people get so involved and want to vote."
She had no comment on why Sonoma County demographics might lead to high voter turnouts.
"We don't really care about that," she said. "We just hope for high margins."
If you haven't had a chance to mail in your ballot, you can drop it off at any polling booth in the county tomorrow, she said.