Colorado › Jefferson County › Jefferson County Sheriff
2 candidates are tracked for Jefferson County Sheriff on the November 3, 2026 ballot: Regina "Reggie" Marinelli and Randall Doizaki. Candidate information follows official Jefferson County election filings; verify with the official election office linked below.
Incumbent Sheriff Regina "Reggie" Marinelli, a Democrat who has held the office since January 2023 after a 40-year career at the Sheriff's Office, seeks reelection against Republican nominee Randall Doizaki, per Jefferson County's official leadership page and the Jefferson County Democratic and Republican parties' 2026 candidate pages. This contest is on the November 3, 2026 ballot.
Democratic · Incumbent
Regina "Reggie" Marinelli is the sitting Jefferson County Sheriff, in office since January 2023 after a 40-year career at the Sheriff's Office, per the county's official leadership page and the Jefferson County Democratic Party.
Campaign site →Republican
Randall Doizaki is a Republican candidate for Jefferson County Sheriff whose professional background is in organizational leadership and people management, per his campaign site.
Source: candidate campaign site.
Campaign site →