The Jail System
Montana has 37 jails in 56 counties, with a jail population of approximately 2,870.
The Prison System
As of December 31, 2016, the Montana prison population was 3,814 located in 5 prisons, with a staff of 1,400 employees and budget of $198 million.
The Community Corrections System
As of December 31, 2016, Montana's community corrections population was 9,132 under probation and 1,074 under parole.