The Oklahoma State Reformatory is a medium-security facility with some maximum and minimum-security housing for adult male inmates. Located off of U.S. Highway 9 in Granite, Oklahoma, the 10-acre (4.0 ha) facility has a maximum capacity of 1042 inmates. The medium-security area accommodates 799 prisoners, minimum-security area houses roughly 200, and the maximum-security area with about 43 inmates. The prison currently houses approximately 975 prisoners.