Union County Inmate Population Records
Union County inmate population records are managed through the Tri-County Regional Jail, a shared facility that serves Champaign, Madison, and Union Counties. The jail sits at 4099 State Route 559 in Mechanicsburg, Ohio. You can search the public roster online, call the jail at 937-834-5000, or visit in person. The Union County Sheriff's Office in Marysville coordinates with the regional jail on all bookings and inmate matters. This page explains how to find people held on Union County charges and what resources are available for families and the public.
Union County Quick Facts
Tri-County Regional Jail Inmate Population
Union County does not run its own jail. Instead, the Tri-County Regional Jail holds inmates from Union, Champaign, and Madison Counties. Scott Springhetti serves as Executive Jail Director and can be reached at sspringhetti@tricojl.com. Luke Mckee is the Assistant Jail Director. The facility runs as a minimum to maximum security jail and handles all local bookings for the three counties.
The jail sits at 4099 State Route 559, Mechanicsburg, OH 43044. You can call at 937-834-5000 or fax at 937-834-9975. The regional setup lets Union County share costs and resources with two other counties while still getting professional correctional services. All police departments and sheriff's offices in the three counties work with the jail to process people who get arrested.
Below is the Tri-County Regional Jail website, the main hub for Union County inmate population data.
This site provides inmate search tools, visitation info, and deposit options for the regional jail serving Union County.
Union County Inmate Population Search Tools
Here is the Union County Jail roster page used to search the inmate population.
The roster shows every Union County inmate with their booking details and current charges.
Visits at the Tri-County Regional Jail are done through video. You can use on-site terminals at the jail or connect from home with a smartphone or laptop. Visits must be scheduled 24 hours ahead and are open daily from 7am to 10pm. Each inmate has a set limit on visits per week. All mail gets opened and checked for contraband, but staff does not read the letters. JailATM.com is another option for inmate deposits and visitation scheduling.
Funds for an inmate's commissary can be added three ways:
- At the lobby kiosk in the jail
- Online through Access Corrections
- By phone at 866-345-1884 with the inmate's full name and ID number
Union County Sheriff and Public Records
The Union County Sheriff's Office is led by Sheriff Malcum J. Patton. The office is at 221 West Fifth Street, Marysville, OH 43040. Call 937-645-4110 or fax 937-645-4170. The sheriff's office has six divisions: administration, communications, court services, investigations, patrol, and support services.
Below is the Union County government website showing the sheriff's office and public records access.
The Union County website links to the sheriff's office, records requests, and other county services.
The office keeps a most wanted list with names, mugshots, last known addresses, and current charges. For record requests, you can submit in person, by mail, or by email to ssanders@unioncountyohio.gov (Attn: Shelby Sanders, Records) at 221 West Fifth Street, Marysville, OH 43040. Traffic crash reports can be requested online through the Ohio Traffic Data website. Under ORC Section 149.43, most booking records and criminal case data are public in Ohio.
Note: Union County inmates are held at the Tri-County Regional Jail in Mechanicsburg, not in Marysville.
Ohio Inmate Population Databases
If someone from Union County has gone to state prison, the ODRC Offender Search is where you check. This covers all Ohio state facilities. Under ORC Section 5120.21, the state keeps detailed records on every person in the prison system. The Union County Clerk of Court also keeps records on criminal and civil charges, with an online search tool for case info.
Union County had just 21 violent crimes in 2021, which is very low. The county includes five cities: Marysville, Richwood, Milford Center, Magnetic Springs, and Unionville Center. None meet the population threshold for city pages on this site. The Ohio Attorney General's Victim Notification program lets victims track changes in an inmate's custody status. Under ORC Section 341.01, the sheriff maintains authority over all jail operations even when using a regional facility.
Nearby Counties
These Ohio counties are near Union County and keep their own inmate population records.