Mark C. Curran Jr. (born April 4, 1963) is an American attorney who served as Sheriff of Lake County, Illinois from 2006 to 2018.
[citation needed] Curran won the Democratic Party's primary election for the position of Sheriff of Lake County, Illinois on March 21, 2006, and won the general election for that position in November 2006, defeating incumbent Gary Del Re.
[citation needed] In August 2008, Curran made national news when he voluntarily spent a week in the Lake County Jail.
[5] After apparent defeat in the 2018 general election by a margin of 137 votes, by challenger John Idleburg,[6][7] Curran requested and lost a recount.
The general election was held in November 2020, with Curran standing unsuccessfully against incumbent Dick Durbin and fellow challenger Willie Wilson.