Incumbent Whitehall Ward 1 City Councilman Chris Rodriguez survived the May 2 nonpartisan primary and will face challenger Gerald Dixon in the Nov. 7 general election.
Dixon and Rodriguez ousted Mitchell in the only primary necessary among council's four ward races.
Three candidates filed for the Ward 1 seat, requiring a primary to whittle the field to a pair of candidates.
According to final unofficial results from the Franklin County Board of Elections, with all precincts reporting, Rodriguez had 68 votes (52 percent), Dixon had 49 votes (38 percent), and Mitchell had 13 votes (10 percent).
Rodriguez has served as either a Ward 1 councilman or an at-large council member since he was first elected in 2001.
Rodriguez, 56, lost a bid in 2011 but was appointed to an open council seat in January 2012, then elected to his current Ward 1 seat in 2013.
“I appreciate the voter support and look forward to a positive campaign," he said.
Dixon, 55, is making a second attempt at elected office after an unsuccessful campaign for an at-large seat in 2015.
“I am heartened by the numbers. It’s a horse race now and I think the tide is turning,” Dixon said.
Mitchell, 53, was unsuccessful in his second crack at elected office.
Twelve years ago, he was close to knocking off an incumbent in a Ward 3 race.
Mitchell lost in his bid for a Ward 3 seat in 2005 against Leo Knoblauch, a current member of the Whitehall school board.
Ward 1 is bordered by East Broad Street to the south, Big Walnut Creek to the west, the railroad tracks to the north, and North James and Barnett roads to the east.
It also includes, south of East Broad Street, the area between Barnett Road and Robinwood Avenue, south to Etna Street.
Races in the city’s other three wards will be resolved in November.
In Ward 2, incumbent Councilman Lee Stahley will be challenged by Joanna Heck of Elbern Avenue; Ward 3 incumbent Larry Morrison is opposed by Paul Werther of San Jose Lane; and two candidates -- Leslie LaCorte and Lori Elmore -- are vying for an open seat in Ward 4, where incumbent Van Gregg is precluded from seeking election due to term limits.
Elmore withdrew from an at-large council race in 2015 because she did not meet the residency requirement at the time; LaCorte is a former at-large and Ward 4 council member who unsuccessfully campaigned for mayor in 2015.
Incumbent Auditor Dan Miller will be unopposed in November.