2018 Jefferson County, Missouri Executive election

The 2018 Jefferson County, Missouri Executive election took place on November 6, 2018. Incumbent County Executive Ken Waller declined to run for re-election to a third term, instead opting to run for County Clerk. Businessman Dennis Gannon, the former President of the County Port Authority, won the Republican primary over sheriff's deputy Gary Stout, and faced former State Representative Jeff Roorda, the Democratic nominee, in the general election. Gannon defeated Roorda by a wide margin, winning 58 percent of the vote.

Democratic primary Candidates Jeff Roorda, former State Representative

Results

Republican primary Candidates Dennis Gannon, businessman, former President of the Jefferson County Port Authority Gary Stout, county sheriff's deputy, businessman, 2014 Democratic candidate for County Executive

Results

General election Polling Poll source Date(s)administered Samplesize Marginof error DennisGannon (R) JeffRoorda (D) UndecidedVoice Broadcast CorpOctober 2–4, 2018581 (LV)± 3.1%35%40%25%

Results

Notes

Partisan clients

References