Incumbent Ed Poponick led the field in the Republican primary race for supervisor, with all 13 precincts reporting Tuesday.
According to unofficial tallies, Poponick received nearly 58% of the vote, followed by Doug Murphy, with about 28%, and Frank Zupanc, with more than 12%.
Write-ins accounted for less than 1% of the Republican write-ins.
The Democratic nominee for supervisor will be determined by write-in voting, as no candidate was listed on the ballot.
