In 1992, it expanded to house an additional 400 medium-custody inmates.

The facility provides medium-, maximum-, and close-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.

Thirty members of the staff and faculty from Peninsula College serve at the facility, providing adult offender education and staff training programs.