The Sheriff's Office is Now Open to the Public

About Chief Jeff DeHan


Chief Jeff DeHan grew up in South Seattle. He received a degree in Finance from Seattle University and worked for the Boeing Company upon graduation. After meeting his wife Chrissy, they moved to Idaho where they owned/operated a hunting & fishing lodge. In his free time, he volunteered as a Reserve Deputy for Shoshone County Sheriff’s Office before accepting a full-time position as Deputy Sheriff in 1995. Moving back to Washington, Jeff and Chrissy raised their three children on the family farm in Yelm, whom have all since graduated from college.

Chief DeHan joined the Thurston County Sheriff’s Office (TCSO) in June 1997. As a patrol deputy, he was involved in numerous special assignments and received a Red Cross Lifesaving award in 1999. He served six years as a detective and was promoted to Sergeant in 2007, where he worked in both Patrol and Civil Services. Jeff was one of the longest serving members on TCSO SWAT and was most recently the Team Commander.

On January 1, 2021, Jeff was appointed as Chief Deputy by Sheriff John D. Snaza, assigned to oversee the Support Services Bureau, which includes: Information Technology, Investigative Services Division, Records, Evidence, and the Services Division comprised of the Front Desk, Civil, Warrants, and Firearms. In addition, he oversees the Dive Rescue Team (DRT), Search and Rescue (SAR), and Honor Guard Unit.

Chief DeHan also serves as an elected fire commissioner for the Thurston County Southeast (Yelm/Rainier) Fire Authority.

During his off-time, Chief DeHan enjoys biking, snow skiing, golfing, hunting, and vacationing with his family.