Colorado Governor Jared Polis has appointed James X. Quinn to the 18th Judicial District Court.  His appointment is to fill a new judgeship created pursuant to Senate Bill 25-024 and is effective July 1, 2025. 

Quinn is a Magistrate in the 18th Judicial District, a position he has held since 2019. His docket consists of criminal matters. Previously, he was an Assistant Solicitor General (2016-2019), First Assistant Attorney General (2011-2019), and Senior Assistant Attorney General (1999-2011) in the Colorado Attorney General’s Office; Attorney at Campbell, Bohn & Leffert, LLC (1995-1999); Attorney at The Law Office of Martin J. Plank, P.C. (1994-1995); and Attorney at Montgomery, Little & McGrew, P.C. (1992-1994).

Quinn earned his B.A. and J.D. from the University of Colorado in 1989 and 1992, respectively.

Colorado’s 18^th Judicial District covers Arapahoe County.