Missouri › Jefferson County › Jefferson County Prosecuting Attorney
One candidate is tracked for Jefferson County Prosecuting Attorney on the November 3, 2026 ballot: Trisha C. Stefanski. Candidate information follows official Jefferson County election filings; verify with the official election office linked below.
No Democrat filed. August 4 primary result: incumbent Trisha C. Stefanski was unopposed in the Republican primary (21,879 votes), per the Jefferson County Clerk's official primary results summary; she is unopposed on the November 3 ballot.
Republican · Incumbent
Trisha C. Stefanski is the Jefferson County Prosecuting Attorney, first elected in 2018 as the first woman to hold the office, per the county's official page. She earned her law degree from St. Louis University School of Law. No campaign website or questionnaire response was found as of September 6, 2026.