Twin Falls County Jail Overview
Twin Falls County Adult Detention Facility is also identified in the Idaho Sheriffs' Association jail directory as the James R. Munn Detention Facility. It is a county jail, not a state prison. The Twin Falls County Sheriff's Office operates the jail and uses detention staff classification to manage people held before trial, people serving local jail terms, people arrested on warrants, and people waiting for transfer to another agency. Arrests from Twin Falls, Buhl, Filer, Kimberly, Hansen, Hollister, Murtaugh, and other county communities may route to this jail when the person is booked into county custody.
The facility sits in the county-seat government area near sheriff, court, prosecutor, and clerk functions. A jail headcount confirms current custody at the time of the sheriff report. A court file shows filed charges, hearing dates, amended counts, dismissal, plea, or sentence. A state correction record begins when a person is sentenced or supervised by the Idaho Department of Correction.
Important: The Twin Falls County jail roster source located in official research is the sheriff's dated daily headcount PDF, not a public search form with filters.
Twin Falls County Jail Capacity
The most specific capacity figure located for Twin Falls County Adult Detention Facility came from county medical-services procurement material from 2023, which described the jail as having approximately 254 inmate capacity. That number should be read as a rated or planning capacity from a county procurement context. It should not be treated as the current population on any given day.
The daily population source located in the official sheriff materials is different. The Twin Falls County Sheriff's Office published a dated daily headcount PDF for June 8, 2026, and that report contained more than 300 roster rows. Because the capacity figure and the headcount figure come from different documents and dates, the safest reading is source-specific. No official annual bookings figure, average daily population, length-of-stay measure, or demographic breakdown was located in the reviewed official pages.
| Measure | Located Figure | Source Context |
|---|---|---|
| Rated capacity | Approximately 254 inmates | County medical-services procurement/RFI material, 2023 |
| Daily jail headcount | More than 300 people listed | Sheriff daily headcount PDF dated June 8, 2026 |
| Annual bookings and ADP | Not located | No official annual booking or average daily population report found |
| Demographics | Not located | No official jail demographic summary found |
Search Twin Falls County Inmates
Current Twin Falls County jail custody starts with the Twin Falls County Sheriff's Office homepage. The sheriff site links to a daily headcount PDF, such as the June 8, 2026 report used in the research file. The public report is free to view and does not require a login. It also does not have official last-name fields, reset buttons, dropdown filters, tabs, or pagination. Searching the report means opening the PDF and using the browser or PDF viewer search tool.
For a deeper walkthrough of current custody records, the Twin Falls County jail inmate records page covers the daily report and related fallback channels. For facility lookup, use the newest sheriff headcount first, then call or route to another system if the person is not listed.
- Open the sheriff homepage and look for the current "Headcount" or dated headcount PDF link.
- Open the PDF and use the viewer search function for the person's last name or visible name text.
- Check the report date, since the jail list changes after booking, release, bond, court orders, and transfers.
- If the person is not listed, call Twin Falls County Adult Detention Facility at 208-734-9090.
- If staff say the person left county custody, check IDOC, federal, immigration, or court systems as the facts require.
Twin Falls County Jail Contact
The jail information number is the practical fallback when the daily headcount does not answer a custody question. A person may be too recently arrested to appear in the report, may have bonded out, may be in another county, may have moved to IDOC after sentencing, or may be held through a federal or immigration channel.
Twin Falls County Adult Detention Facility
504 Gooding Street N
Twin Falls, ID 83301/83303
208-734-9090
Primary jail and inmate information number.
Sheriff Jack Johnson is the current sheriff named on the official sheriff page. The Sheriff's Office is at 425 Shoshone Street N, Twin Falls, ID 83301, and the main number is 208-736-4177. Warrant and arrest-record service hours are Monday-Friday, 8:00 a.m. to 5:00 p.m., excluding holidays. Public-record requests that are not answered online can also be routed through the Twin Falls County public records request page, subject to Idaho records law and any exemptions.
Twin Falls County Jail Visits
Official jail-specific visitation schedules were not located in the reviewed Twin Falls County sheriff pages. That gap should be handled by confirmation, not by relying on third-party directories. Call 208-734-9090 before planning a visit, especially if travel, child visitor rules, interpreter needs, attorney visits, or holiday timing are involved. A current visit can be affected by classification, housing, discipline, medical status, court movement, staffing, lockdown, or a same-day facility change.
Bring government-issued photo identification for any in-person process. Do not bring weapons, drugs, cash for unsupported purposes, or other contraband into a detention facility. Legal or attorney-client visits should be coordinated through counsel and jail policy.
| Visit Question | Confirmed Official Detail | What to Do |
|---|---|---|
| In-person schedule | Not located in reviewed official pages | Call the jail before travel |
| Visitor ID rule | Specific local rule not located | Bring government-issued photo ID and confirm age rules |
| Video visitation | Vendor and schedule not located | Do not use a vendor site unless jail staff confirms it |
| Dress code | Not located | Ask the jail for the current dress-code rule |
Note: Confirm custody and visit approval with the jail the same day before traveling to Gooding Street N.
Twin Falls County Jail Mail
Current jail-specific mail, phone, video, tablet, commissary, and deposit vendors were not found in the official pages reviewed for Twin Falls County Adult Detention Facility. Do not assume that a national jail vendor serves this facility. Do not send funds through a third-party deposit site unless jail staff confirms the current method, fee, account format, and posting time.
Mail should be confirmed before sending. The facility address is known, but the public research did not locate a current official mail-format page showing whether a booking number is required, whether mail is scanned, whether photos are allowed, or how legal mail must be marked. Call the jail with the person's full name, booking date if known, and any report row information from the sheriff headcount.
| Service | Official Detail Located | Research-Safe Action |
|---|---|---|
| Mail format | Jail address confirmed, full format not located | Ask whether name, booking number, or housing is required |
| Phone or video calls | Vendor not located | Call before funding any account |
| Money deposits | Vendor and fees not located | Confirm accepted methods, limits, fees, and cutoff times |
| Commissary | Provider not located | Ask jail staff for current order and deposit rules |
| Legal mail | Local format not located | Follow attorney and jail policy before sending privileged mail |
Twin Falls County Booking
After arrest in Twin Falls County, a person may be transported to Twin Falls County Adult Detention Facility for intake unless a citation or other release process is used. Booking can include identity confirmation, warrant checks, property inventory, fingerprints, a booking photograph for law-enforcement identification, medical and safety screening, classification, and housing placement. The daily headcount may lag behind a recent arrest because intake, data entry, release decisions, and report timing do not always occur at once.
Bond and release also require care. A person may be eligible for cash bond, surety bond, personal recognizance release, or other court-approved terms. A person may also remain in jail because of a no-bond warrant, felony hold, probation or parole hold, another county hold, federal hold, immigration detainer, or a court order that blocks release.
- Confirm current custody through the sheriff daily headcount and the jail phone line.
- Ask whether bond exists, whether another hold blocks release, and where payment must be made.
- Check Idaho iCourt for filed criminal case details after charges are opened in court.
- Keep receipts and follow court instructions, since bond money is controlled by court order and Idaho law.
Twin Falls County Court Records
The jail headcount and the court record answer different questions. The headcount can show whether a person appears in the sheriff's daily custody snapshot. It does not prove which charges the prosecutor filed, whether a count was amended, or whether the case ended in dismissal, plea, conviction, or sentence. Formal case events are searched through the Idaho iCourt/Odyssey public portal and through Twin Falls County clerk or court channels when public access is restricted or older records require staff help.
Idaho Court Administrative Rule 32 controls public access to many court records, but it also protects confidential categories such as sealed, juvenile, victim, mental-health, and protected personal information. A missing document is not proof that no case exists.
Twin Falls County Transfer Lookup
No state prison, federal Bureau of Prisons facility, ICE detention center, separate city jail, or county annex was confirmed in Twin Falls County through the official facility sources reviewed. Transfers can still happen after sentencing, on another county's warrant, on a federal case, or because immigration custody is involved. When the daily headcount no longer lists a person, the next system depends on the legal status.
Use the Idaho Department of Correction Resident/Client Search for sentenced state prisoners, probationers, parolees, or other IDOC-supervised people. Use the BOP Inmate Locator for federal sentenced custody and some released federal records. Use the ICE Online Detainee Locator System for immigration detention by A-Number and country of birth or by biographical fields.
Note: VINELink Idaho may provide custody-status notifications where data is available, but alerts are separate from the sheriff's daily PDF.