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Canyon County Jail

The Canyon County Sheriff’s Office’s mission is to maintain the safety and decorum of the judicial system for its citizens. The Office also must protect society through vigilance in their duties and provide safe passage for all in their custody in a professional, consistent and courteous way.

The Sheriff’s Office is a law enforcement agency which is responsible for approximately 602 square miles. The Office provides all areas of law enforcement including jail, civil processing, disaster services, driver’s license, concealed weapons permits as well as emergency dispatching.

The motto of the office is “Expect the Best.” The acting Sheriff in charge is Kieran Donahue. He is assisted by Chief Deputy Marv Dashiell.

Canyon County Jail population

Canyon County jail experienced its largest population in 2007. The average daily population reached 674 inmates during this time. When you look at the data, even though the general population of Canyon County is increasing, the inmate population has been steadily declining. The average daily population of inmates was 382 in 2015.

Historic data shows that the average daily inmate population has decreased by 32.5% from 556 to 382 from 2004 to 2015.

Canyon County Jail consists of three buildings which are the Annex, the Dale G, Haile Detention Center, and the Tent Facility. The total capacity of all three buildings is 464 inmates.

Canyon County Jail Roster

Plans for Canyon County Jail

There has been a lot of debates amongst local officials about whether to expand the current jail or build a replacement facility. To make matters worse, five inmates have escaped Canyon County Jail’s Sprung structure in the last 43 months.

The Sprung structure’s original purpose was to house inmates on the work release program. However, it has begun being used to house general population inmates because of rising population numbers.


The statistics

From 2004 to 2015, historic jail admissions or ADM has decreased 9,694 to 6,713 which is a decrease of 30.8%. It is decreasing annually at a rate of 3.3%. The average for ADM over an 11 year period is 8,764. Interestingly, there has been a decrease in male ADM while the female jail ADM has stayed stable from 2004 to 2015.

From 2004 to 2015, the annual average length of stay or ALOS of inmates has decreased by 2.5% from 21.3 days to 20.8 days. In 2010, ALOS went down to a low of 17.9 days. ALOS was at an all-time high in 2007 at 23.3 days. Currently, ALOS is 20.8 days. There is data that shows that male inmates stay longer in Canyon County Jail than female inmates. The same data shows that male ALOS has increased by 9.3% from 2004 to 2015. During the same period, female ALOS decreased by 30.1%. The annual average ALOS for females is 12.4 days while for men it is 23.3 days.

Canyon County Jail

Programs offered in Canyon County Jail

Canyon County Jail doesn’t offer as many programs for its inmates as other jails; however, it does offer programs to make inmates more productive upon release. Programs offered are Alcoholics Anonymous, Narcotics Anonymous, religious services and so on. These programs are offered by volunteers. As a result of being offered by volunteers, programs are often canceled because volunteers have limited time and availability.

Contact information

If you would like to contact the Canyon County detention center, you can dial 208-454-7510. You can contact them by mail at this address.

219 N. 12th Ave.

Caldwell, ID 83605

If you would like to send them an email, you can send them an email at

The Canyon County detention center operates from 8 am to 5 pm on weekdays excluding public holidays.

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