Yellowstone County Commissioner Mike Waters shares an update on the proposed Yellowstone County Jail Expansion
The Yellowstone County Commissioner delivered a detailed presentation on the critical state of the Yellowstone County Detention Facility. The facility, designed for 434 inmates, currently houses 681, a level of overcrowding that poses serious risks. This overcapacity creates unsafe conditions for both staff and inmates, limits emergency response capabilities (e.g., inability to relocate inmates during plumbing or electrical failures), and disrupts proper security classification—some medium-security inmates are held in general population, and high-risk individuals may lack appropriate placement due to space constraints.
The overcrowding directly impacts public safety by weakening the power of arrest. Law enforcement officers and judges must consider jail space before making arrests, even for repeat offenders and domestic violence cases. This undermines accountability and allows low-level and non-violent offenders to remain on the streets unchecked. The county currently has over 11,000 outstanding arrest warrants, many for non-violent misdemeanors, with little enforcement due to lack of jail capacity.
Proposed Expansion Initiative
To resolve this crisis, a ballot initiative in November proposes a 332-bed expansion: 320 general beds and 12 dedicated medical/mental health beds. The total cost is $195 million, comprising a $175 million bond and a $20 million levy over 20 years. The expansion would be built on existing county property, incorporating the current county shops area, and designed to allow for future growth.













