Ozark County Jail / Ozark County Law Enforcement Center Overview
Ozark County Jail is operated by the Ozark County Sheriff's Office under Sheriff Cass, also listed as Cassidy, Martin. The facility sits at 1818 County Road 806 in Gainesville and serves as the county's central detention point for local arrests, short county sentences, transfer holds, and people awaiting movement to another agency. Older county-directory material also uses the mailing address HC 1 Box 8-1, Gainesville, MO 65655-9602, so visitors should use the County Road 806 address for navigation and keep the older rural-route address only as directory context.
The facility is not just a local jail. ICE lists Ozark County Jail as a detention facility under the Chicago Field Office, and the research file documents a detention and transport function tied to immigration custody. That does not mean every person held there is an ICE detainee. Local arrests remain sheriff and court matters; sentenced Missouri prisoners move to the Missouri Department of Corrections; federal sentenced prisoners are found through BOP after federal commitment; and immigration detainees may require ICE ODLS plus the jail's option 2 phone line.
The official ICE facility page for Ozark County Jail is one of the clearest public sources for the facility's detainee contact, visitation, and mail instructions.
Because that ICE page describes the same physical jail, the facility should be treated as one Ozark County Jail page with separate local and immigration lookup paths.
Ozark County Jail / Ozark County Law Enforcement Center Capacity and Population
Public capacity data is limited. The strongest public bed figure in the research is the Marshall Project's May 19, 2025 reporting, which described Ozark County as having a 24-bed jail while discussing the county's ICE contract and transport work. That figure should be read as a reported bed capacity, not as a county-published rated-capacity certificate. A historical correctional-population table used by Prisoners of the Census listed 19 people at Ozark County Jail for the December 31, 2013 local-jail data point.
No current average daily population, annual booking total, or demographic breakdown was found in official local sources. The known facility population can change quickly because a small number of local arrestees, transport detainees, other-agency holds, or ICE detainees can materially affect a 24-bed rural jail.
How to Look Up an Inmate at Ozark County Jail / Ozark County Law Enforcement Center
No official Ozark County public online jail roster, recent-booking list, or mugshot gallery was located in the research. For a current local inmate, start by calling the Ozark County Sheriff's Office or jail at 417-679-4633 with the person's full legal name, date of birth, approximate arrest date, and arresting agency if known. For immigration custody, the ICE facility page says detainee information is available at 417-679-4633 option 2, and the research notes that option 2 is available 24 hours for detainee information.
- Call 417-679-4633 first for local jail custody, booking, release, and transfer questions because no official Ozark County roster was found.
- Use ICE ODLS when the person may be an immigration detainee; search by A-number or by exact biographical details.
- Use Missouri DOC Offender Search after a state sentence, probation, or parole event; it is not the local jail roster.
- Use the BOP Inmate Locator only for federal prisoners from 1982 to present, and use Missouri VINELink for custody-notification availability.
- Search Missouri Case.net after charges are filed, then make a written Sunshine Law request to the sheriff for open booking or arrest records not posted online.
For records requests, Missouri Sunshine Law sections 610.023, 610.026, and 610.100 matter most. They cover records-custodian duties, allowable copying and staff-time fees, and the difference between open arrest or incident records and records that may be closed or redacted.
Ozark County Jail / Ozark County Law Enforcement Center Address and Contact
The jail and sheriff's office share the main law-enforcement contact point in Gainesville. Use the phone number for urgent custody status, current visit questions, mail confirmation, and release or transfer information. Written record requests should identify the person, incident, arrest date, booking date, case number, or other detail that helps staff locate the record. The Missouri DPS Ozark County contacts page and the Missouri Association of Counties Ozark County directory are useful directory cross-checks for local office information.
Ozark County Jail / Ozark County Law Enforcement Center
1818 County Road 806
Gainesville, MO 65655
417-679-4633
Fax: 417-679-3201
ICE detainee information and scheduling: call 417-679-4633, option 2
Visiting Someone at Ozark County Jail / Ozark County Law Enforcement Center
Published local non-ICE visitation rules were not located, so visitors for local county inmates should call 417-679-4633 before traveling. ICE-indexed official text gives more specific rules for ICE detainees: one hour of visitation per week, Monday through Saturday from 9:00 a.m. to 2:30 p.m., scheduled at least one business day ahead through 417-679-4633 option 2. Friend and family visits for ICE detainees are non-contact.
Adult visitors should bring government-issued photo identification. Minors must be accompanied by a parent or legal guardian and may need relationship proof, such as a birth certificate or court order. ICE visitor rules also allow pat-downs, bag inspections, and metal scans, and prohibit weapons, electronic devices in secure areas, and passing items to detainees.
| Day | Hours | Type |
|---|---|---|
| Monday | 9:00 a.m.-2:30 p.m. | ICE friend/family, non-contact, scheduled ahead |
| Tuesday | 9:00 a.m.-2:30 p.m. | ICE friend/family, non-contact, scheduled ahead |
| Wednesday | 9:00 a.m.-2:30 p.m. | ICE friend/family, non-contact, scheduled ahead |
| Thursday | 9:00 a.m.-2:30 p.m. | ICE friend/family, non-contact, scheduled ahead |
| Friday | 9:00 a.m.-2:30 p.m. | ICE friend/family, non-contact, scheduled ahead |
| Saturday | 9:00 a.m.-2:30 p.m. | ICE friend/family, non-contact, scheduled ahead |
| Local inmates | Call first | No separate official local schedule located |
Mail, Phone, and Money at Ozark County Jail / Ozark County Law Enforcement Center
ICE-indexed text gives this detainee mail format: Ozark County Jail, C/O Detainee Name, last four digits of the A-number, 1818 County Road 806, Gainesville, MO 65655. Legal representatives may use attorney@ozarkcounty.gov or fax through 417-679-4633 option 2 for legal correspondence, marked as legal mail with the detainee name and A-number. Local inmate mail rules were not published in an official county source located during research, so call before sending envelopes, photos, books, money orders, or packages.
Tiger Commissary's Ozark County Jail page confirms web deposits and commissary orders for the Gainesville jail.
Use the vendor page only after confirming the person is still held at Ozark County Jail and that the deposit rules apply to that person's custody type.
| Service | Provider / Detail |
|---|---|
| ICE detainee mail | Ozark County Jail, C/O Detainee Name, last four digits of A-number, 1818 County Road 806, Gainesville, MO 65655 |
| Phone account funding | NCIC Correctional Services, 800-943-2189; international +1-903-247-0069; ncic.com |
| Money deposit | Tiger Commissary Web Deposits for Ozark County Jail |
| Commissary orders | Tiger Commissary Order Commissary for Ozark County Jail |
| State prison funds | MODOC uses JPay, JPay Mobile, 800-574-5729, or MoneyGram receive code 2439 after a person transfers to state custody |
Booking and Intake at Ozark County Jail / Ozark County Law Enforcement Center
Ozark County did not publish a local booking walkthrough in the sources reviewed, so the practical intake path is the standard Missouri county-jail sequence tied to the sheriff's office. A person arrested by a deputy, city officer, state trooper, or warrant officer may be transported to the jail for identity confirmation, warrant checks, property inventory, contraband search, fingerprints, booking photo, charge entry, medical screening, phone access, bond information if available, and housing classification.
Missouri law gives the sheriff custody and charge of the county jail and prisoners under RSMo 221.020. RSMo 544.170 is also relevant for warrantless arrests because it addresses the timing for charging or discharge and reasonable access to counsel or someone acting for the confined person. A jail booking charge is not the final court charge; use Case.net after filing to see public court events and the prosecutor's filed charges.
About Ozark County Jail / Ozark County Law Enforcement Center
The jail is part of a small rural sheriff's office whose public record footprint is thinner than larger Missouri counties. Public reporting in 2022 described budget and fuel pressure that reduced patrol response, while later reporting said voters approved a law-enforcement tax connected to jail repairs and staffing. In 2025, the Marshall Project reported that Ozark County negotiated ICE detention and transport work, including a reported $110 per detainee per night and $1.10 per transport mile, and described staffing and pay changes tied to that work.
In May 2026, KTLO reported that the Ozark County Sheriff's Office received Missouri Blue Shield designation, with Sheriff Martin crediting deputies, jail staff, and office personnel. No official Ozark County sheriff mobile app, app-only roster, warrant-search app, or mugshot feed was verified in the research, so phone, Sunshine requests, MODOC, ICE ODLS, BOP, VINELink, and Case.net remain the documented lookup channels.
Note: Confirm custody, visit approval, schedule, and deposit eligibility with the jail before traveling or sending money.