Sheriff Rex Conroy, Sr. took office in January of 2015. He came into office with 25 years of law enforcement experience. Sheriff Conroy has served as a police sergeant, police lieutenant, and police captain. He also had previously served as the acting Chief of Police for the Oglala Sioux Tribal Department of Public Safety.
Sheriff Conroy is a member of the Oglala Sioux Tribe and South Dakota Sheriffs’ Association. Oglala Lakota County covers 2,097 square miles and has a population of 14, 118.