Union County Jail Roster
Adult local custody for Union County is routed through Tri-County Regional Jail, a regional jail in Mechanicsburg that also serves Champaign and Madison Counties. The jail's official site links to the Miami Valley Jails current-custody roster, where the Tri-County provider row appears as TRI-JAIL. That roster is built for current custody only. It is the right first stop for a person recently arrested by the Union County Sheriff's Office, Marysville Police Division, Ohio State Highway Patrol, or another local agency when the person remains in adult jail custody.
The roster is not a complete Union County criminal-history file. It does not replace the Union County Clerk of Courts for felony Common Pleas cases, Marysville Municipal Court for misdemeanor or traffic cases, or the Ohio Department of Rehabilitation and Correction for sentenced prison custody. Sheriff Mike Justice's office also keeps public records and local background-check records, but the sheriff records desk and Tri-County jail answer different questions. A roster entry can show current jail status, while the court file shows what charges were filed after arrest.
The roster page states that information is for inmates currently held in the listed jail providers and that no information is available for people housed in other jails. During research, Tri-County's provider row showed a 30-minute update cycle and the public phone 937-834-5000. A new booking may still be in intake, verification, medical screening, or transport before it appears, so a blank result should not be treated as proof that no arrest occurred.
The roster source image comes from the Miami Valley Jails current-custody page.
The screenshot is useful because it shows the provider table, alphabetic roster controls, update language, and the security check that can block automated viewing.
Use Union County Roster
The Union County inmate records workflow starts with the official Tri-County roster, not a commercial people-search site. The public page is alphabetic, and the visible inspection showed last-name A through Z links rather than a broad multi-field form. The current-inmate list and profile view may require a CAPTCHA. The page says users must prove they are human and must allow session cookies for the Miami Valley Jails domain, while the Tri-County jail site remains the local hub for roster, phone, deposit, and visit links.
- Open the Tri-County roster from the Union County or Tri-County jail site, then confirm the provider row is TRI-JAIL or Tri-County Regional Jail.
- Use the A through Z last-name links if the list loads. The visible roster control is organized by last-name initial.
- If the security check appears, type the code shown and use Continue. A blocked session may need cookies enabled.
- Check the update interval and last-update time before relying on a result. The inspected Tri-County provider row used 30-minute updates.
- If the person is not listed, call Tri-County at 937-834-5000 or use the public-records and court channels below.
For older booking details or a person no longer held at Tri-County, ask for a specific existing record. The Union County Sheriff public-records page says the written form is recommended but not required, and requests may be made by mail, email, or phone. UCSO Records can be reached at sheriffpublicrecords@unioncountyohio.gov or 937-645-4100 ext. 4468. Sheriff Court Services and records questions also route through 937-645-4103 when the issue involves civil or criminal process.
Union County Search Fields
The Tri-County roster has a narrow public search surface before the security check. That matters because many readers expect a search box for date of birth, charge, arresting agency, or booking number. The visible official page instead presents provider rows, alphabetic last-name browsing, sorting links, and a CAPTCHA gate before current-custody details.
| Field Label | Type | Required | Notes |
|---|---|---|---|
| Search by Last Name | A-Z link filter | Optional | Letters A through Z appear as individual links for browsing by last-name initial. |
| Last | Sort or link control | Optional | Visible near the top and likely sorts the current list by last name. |
| First | Sort or link control | Optional | Visible near the top and likely sorts the current list by first name. |
| Type the code shown | CAPTCHA text entry | Required for profile access | The roster requires a human security check before current inmates can be viewed. |
| Continue | Button | Required after CAPTCHA | Submits the security code and moves the user toward the custody list. |
| Link or button | Optional | Provides a printable view or print control for the provider page. | |
| Who can I call? | Help link | Optional | May route to provider contact details after the security check. |
Because the roster is current-custody focused, use the last-name controls for active jail status and then move to the courts for case filings. Felony cases are searched through Union County Clerk records, while misdemeanors and traffic cases are searched through Marysville Municipal Court. The sheriff local background-check page also warns that local checks are name-based, are not identity verified, and do not include arrests from other jurisdictions.
Union County Inmate Profile
The public inmate profile fields could not be fully confirmed because the Tri-County current-custody list requires a CAPTCHA. The accessible provider page still shows useful custody data. Treat the table below as the confirmed public provider and roster-page inventory, not as a promise that every inmate profile will show each field.
| Field | What It Shows |
|---|---|
| Provider code | TRI-JAIL for Tri-County Regional Jail. |
| Provider name | Tri-County Regional Jail, the local jail provider serving Union County adult custody. |
| Population | Current total for the Tri-County provider row, not a full Union County-only criminal population. |
| Phone | Public facility phone, listed as 937-834-5000. |
| Update interval | How often the roster provider says custody data refreshes. |
| Last updated | Date and time stamp for the provider row. |
| Security check | CAPTCHA requirement before the current-custody list or profile view. |
| Scope disclaimer | Current custody only for listed jails, with no information for other jail systems. |
When the profile opens, booking charge labels should still be checked against the court record. Arrest charges can differ from filed charges after prosecutor review. That distinction becomes important when a charge is amended, reduced, dismissed, or replaced by an indictment.
County State Federal Lookup
Union County inmate records split by custody system. The Tri-County roster covers local pretrial detainees and locally sentenced jail inmates. The ODRC Offender Search covers people sentenced to Ohio prison custody, people under ODRC supervision, judicially released people, and violators at large. The BOP Inmate Locator covers federal inmates from 1982 to present, while the ICE Online Detainee Locator System covers immigration detainee searches by A-number or name, country, and birth date.
| Custody Type | Where to Look | Important Limit |
|---|---|---|
| Pretrial or local sentence | Tri-County Regional Jail roster or 937-834-5000 | Current custody only, not statewide history. |
| Sentenced Ohio prison | Ohio Department of Rehabilitation and Correction locator | County of commitment is not the same as current facility location. |
| Federal custody | Federal BOP locator | Released or not-in-custody results may still mean another system holds the person. |
| Immigration custody | ICE ODLS or an ERO office | No Union County ICE detention facility was located in the research. |
| Custody alerts | VINELink or 800-770-0192 | Ohio VINE covers ODRC, DYS, and county jails, not city jails. |
The Union County Sheriff's Office app is a supplemental public-safety channel, not the official custody source. The app is available on iOS and Android. App store descriptions emphasize public-safety news, tips, and outreach. A 2025 Google Play review mentioned an inmates feature that did not load, so custody should still be confirmed through Tri-County or official records staff.
Union County Jail Facilities
Union County has a regional jail path plus state and community-corrections facilities that can confuse a custody search. Tri-County is the local jail for current adult custody. Ohio Reformatory for Women is a state prison in Marysville for sentenced women in ODRC custody, not a county jail. West Central Community Correctional Facility is a secure community-based correctional facility and prison alternative for felony offenders from several counties.
Tri-County Regional Jail
4099 State Route 559
Mechanicsburg, OH 43044
937-834-5000
Current Union County adult jail custody and local inmate records.
Ohio Reformatory for Women
1479 Collins Avenue
Marysville, OH 43040
937-642-1065
State prison custody through ODRC, not Tri-County jail custody.
West Central Community Correctional Facility
18200 State Route 4 North
Marysville, OH 43040
937-644-2838
Secure treatment facility and local prison alternative.
Union County Booking Process
A Union County arrest may start with a new charge, a bench warrant, an active warrant, or a court remand. If adult local custody is required, the person is usually transported to Tri-County Regional Jail. The Union County Sheriff Court Services page confirms prisoner transports to and from detention facilities and court hearings, and the sheriff's annual reports show a steady operational link between the jail and Union County courts.
Booking and intake can include identity verification, property inventory, medical and mental-health screening, fingerprints, a booking photograph, classification, phone access setup, and court routing. Ohio full-service jail standards require emergency medical, dental, and mental-health care, and classification rules account for assaultive behavior and escape risk. The public Tri-County pages did not publish housing unit details, mail format rules, or full property-return instructions.
After booking, felony matters tend to route to Union County Common Pleas through the prosecutor and Clerk of Courts. Misdemeanor and traffic matters often route through Marysville Municipal Court. Court posting can lag custody data, and Marysville Municipal Court warns that CaseLook data may trail filings or judicial action by at least 24 hours.
Union County Visit Services
Tri-County's website says all visits are done through video visitation and directs users to JailATM for visits. The official pages inspected did not provide a full day-by-day video schedule, dress code, or attorney-visit policy. That means the safest path is to confirm custody first, then check the jail's JailATM instructions or call Tri-County before scheduling.
| Service | Vendor or Channel | Details Found | Gap |
|---|---|---|---|
| Video visitation | JailATM | Tri-County says all visits are by video visitation. | Detailed schedule was not captured. |
| Inmate phone | ICSolutions | Accounts may be created or funded online, by app, or by calling 1-888-506-8407. | Current per-minute rates were not found. |
| Commissary and tablet trust | Access Corrections | Online and app deposits are listed by Tri-County. | Fee table was not found. |
| Lobby kiosk | CyberSuite / Access Corrections | Users must log in or create an Access Corrections account with identity details. | Lobby hours were not located. |
| Victim notification | VINE / VINELink | Free notification by web or 800-770-0192. | Notification is not a visit service. |
Tri-County's public site is also the source for phone, deposit, and visit routing.
The page separates custody lookup from contact services, which helps avoid sending money or scheduling visits for someone who has been released or transferred.
Union County Records Requests
When the roster does not show the person or the needed record is historical, use the record holder. Sheriff-created records, local background checks, incident reports, and some booking-related records route to UCSO Records at 221 West Fifth Street, Marysville, OH 43040, sheriffpublicrecords@unioncountyohio.gov, or 937-645-4100 ext. 4468. The sheriff public-records page says requests should identify specific existing records rather than ask staff to create an answer.
Actual copy, delivery, or transmission costs may be charged, and prepayment can be required for copies. Labor to respond is not part of the actual-cost language cited by the sheriff page. In-person local record checks are handled at the UCSO Records Office, Monday through Friday from 8:00 AM to 4:30 PM, with no appointment required for the local criminal background-check service described by the sheriff. For felony dispositions, use Clerk eServices. For misdemeanors, use Marysville Municipal Court. For juvenile matters, the sheriff background-check page routes readers to juvenile court in person.
Note: Confirm current custody with Tri-County before sending money, scheduling a video visit, or relying on a court date.