Jeffrey C. Marks, Prosecutor

Jeffrey C. Marks


33 West Main Street
Suite 200
Chillicothe, Ohio 45601


Jeffrey graduated from Hoover High School in North Canton, Ohio, in 1994. After graduation, he attended Washington and Jefferson College in Washington, Pennsylvania. In 1998 he graduated with a degree in Political Science and attended the University of Akron School of Law where he earned his Juris Doctor in 2001.

After spending a few years in Pittsburgh, Pennsylvania, he returned to Ohio. In February of 2006, he accepted a position as a part-time Assistant Prosecuting Attorney with the Ross County Prosecutor’s Office. From 2006 to 2013, he served as an assistant prosecutor, as well as working in general private practice. During this time, Jeffrey realized his passion for prosecution, and after his appointment as Chief Deputy Prosecuting Attorney in 2012, he began working full-time for the Prosecutor’s Office in 2013. Jeffrey was appointed as the Ross County Prosecuting Attorney in January of 2019.

Jeffrey manages a team of sixteen professionals, including six assistant prosecutors, two investigators, two victim advocates, and six administrative staff members. At the beginning of 2019, in addition to being appointed to serve as Ross County Prosecuting Attorney, Jeffrey oversaw the relocation of the Prosecutor’s office from its decades long location to a new county-owned facility.

His first several months as Ross County Prosecuting Attorney have been occupied by diligently working to build relationships with and serve the numerous county agencies, townships and township officers he represents, as well as prosecuting three pending death penalty cases.

Jeffrey credits his amazing staff and many county professionals who have assisted in the making the transition to Prosecuting Attorney, and the relocation of the office, as smooth as possible.

Jeffrey’s family includes his wife and two children. Most of his spare time is spent with his family, whether traveling or enjoying outdoor activities, including the occasional round of golf. He remains active in community programs including the American Red Cross and the Chillicothe Cigar Band, to which he volunteers his time.