Cahill, 45, announced in early April he planned to run. He’s running as an independent.
The other candidates in the race are Wilson Forney, a Democrat, and Charles Schwochow, a Republican.
Other candidates can get into the race, but there’s not much time left, said Barb Tuckerman, director of Sandusky County’s election board.
It’s too late for a Democrat or Republican candidate to file, but independents have until Monday — the day before Tuesday’s primary — to file to run, Tuckerman said.
Cahill is a longtime language arts teacher and coach in the Clyde-Green Springs schools.
He thanked the people who signed his nominating petitions and said he’s ready for his first political campaign.
“I’ve begun putting together a campaign group led by Rick Egbert, who agreed to be the treasurer for my campaign” he said. “I am committed to working hard and running an honorable campaign. I will be attending different events all over the county in the upcoming months and doing a lot of listening to the citizens of Sandusky County”