Andrew Prince won a seat on Barrie city council with just 362 votes.
He defeated 11 other candidates and will represent Ward 7.
Mayor Jeff Lehman says the new councillor will likely be sworn in at a regular council meeting in Feb. 22.
A total of 1,604 ballots were cast. Ward 7 has over 9,100 eligible voters.
Polls closed at 8 p.m. And a small group of candidates, family members and friends are gathered in the city council chamber, waiting for results.
Voters in Ward 7 had 12 candidates to chose from in the byelection to fill the council seat vacated by John Brassard when he was elected MP for Barrie-Innisfil last October.
Mayor Jeff Lehman and several councillors are also on hand waiting for the results.
Lehman says the winning candidate will receive orientation and council may hold mock meetings to highlight procedures.
"One thing we know for sure is that the person who will join council has absolutely no experience with this," he said.
"The work will start right away."