The Detention Center
James R. Munn Adult Detention Facility (Twin Falls County Adult Detention Center)
- Operated byTwin Falls County Sheriff's Office
- Address / contact425 Shoshone St N, Twin Falls, ID 83301; jail line (208) 734-9090
- Inmate mail addressJames R. Munn Adult Detention Facility, P.O. Box 306, Twin Falls, ID 83303-0306
- PREA policyThe Adult Detention Center states it complies with federal PREA training standards and has 'zero tolerance' for sexual abuse/harassment
Source: Twin Falls County Sheriff's Office – Inmate Information · checked 2026-08-24
Transparency rating
3/10Closed- ✓The jail is named
- ✗Who is in custody — not published
- ✗Beds and daily population — not published
- ✓What it costs taxpayers
- ✗Deaths in custody — not published
- ✓PREA audits
- ✗Independent inspection — not published
- ✗Who else it holds, and for how much — not published
- ✗How to post bond — not published
- ✗Phone, video and commissary rates — not published
The Building
You paid for it. Here is what the record says it cost.
- Year builtNot found
- Original costNot found
- Paid for byNot found
- BedsNot found
Since then
- Not found
The Sheriff
Sheriff Jack Johnson
- Runs the jailYes — the Twin Falls County Sheriff's Office Security Services Division (commanded by Captain Doug Hughes) oversees the Adult Detention Facility
- Main headquarters425 Shoshone St N, Twin Falls, ID 83301
- Jail phone(208) 734-9090
- Detention budget requested vs. approved, by year
- Jail staffing levels and vacancy rate
- Lawsuits and settlements involving the jail
Source: Twin Falls County Sheriff's Office · checked 2026-08-24
The Judges
Twin Falls County is part of Idaho's Fifth Judicial District, per both the county's own site and the Idaho Judicial Branch's district page. Idaho magistrate judges are appointed by the District Magistrates Commission, then face a retention election; district judges are elected.
Fifth Judicial District — Administrative District Judge
- Eric J. Wildman
District Court — District Judges
- Benjamin J. Cluff
- R. William Hancock
Magistrate Court — Magistrate Judges
- Thomas D. Kershaw, Jr.
- Benjamin D. Harmer
- Jennifer Bergin
- Patricia M. Migliuri
- The county's bond schedule
- Share of the jail population held pretrial
- Median time from booking to first appearance
Source: the state judiciary · checked 2026-08-24
The County Commissioners
They pay for the jail. The sheriff runs it.
- What they controlThe detention budget, the building itself, and the agreements that let other agencies rent its beds.
- What they don'tDay-to-day operations. The sheriff is separately elected and answers to voters, not to the board.
- The boardBoard of County Commissioners →
- Where the jail money is decidedAgendas and minutes →
Notes on the record
- The county's FY2026 final budget PDF (published at twinfallscounty.org/clerk/budget-information/) lists a 'CRIMINAL JUSTICE FAC.' fund line among the county's departments/funds, which corresponds to jail/detention funding, alongside a separate 'SHERIFF' department line; exact dollar figures could not be reliably matched to line labels from the PDF's column layout.
- The published PREA report on twinfallscoso.com is dated 2020; no more recent PREA audit result was found on the site.
- Inmate money deposits are handled via a kiosk and Correctpay (correctpay.com), but no specific phone/video/commissary rate table was found published.
- Three-member elected Board of County Commissioners: Brent Reinke (District 1), Suzanne Hawkins (District 2), Rocky Matthews (District 3).
These three offices decide who sits in a cell in Twin Falls County and what it costs the people who live here. Nationally, almost 77% of the people who died in local jails in 2019 had not been convicted of anything, and suicide was the leading single cause of those deaths (Bureau of Justice Statistics, Mortality in Local Jails, 2000–2019).
How much is your sheriff — and your judge — costing you?
Your VOTE is POWERFUL.
The sheriff who runs this jail is elected. So are the commissioners who pay for it.
Names verified 2026-08-24 · dollars and outcomes still being gathered