CBCC opened as a medium-custody 450-bed facility in 1985 and converted to a Closed Custody facility in 1991. In 1992, it expanded to house an additional 400 medium-custody inmates. Today, the facility house 900 inmates.
The facility provides medium-, maximum-, and closed-custody housing for inmates who are serving sentences for crimes committed in Washington State. Currently, 68.4 % of Clallam Bay's offenders were convicted of violent offenses, with an average age of 32.1 years old.
There are 400 full-time professional correctional employees at Clallam Bay. Five correctional industries staff members manage the on-site garment industry. Thirty members of the staff and faculty from Peninsula College serve at the facility, providing adult offender education and staff training programs.