The Jail System
Ohio has 88 counties. According to surveys completed in 2013, there are 106 jail and adult detention facilities, with a population of 18,190 inmates.
The Prison System
As of December 31, 2015, the Ohio prison population was 52,233. As of January 2017, the Ohio Department of Rehabilitation and Correction employed 12,242 staff.
The Community Corrections System
The Ohio Adult Parole Authority had 37,020 offenders under supervision in January 2017. As of Dec. 31, 2015, there were 243,710 adults on probation.