Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest counts are the ones each agency reported to the FBI, as the FBI held them on October 8, 2026. The jail figures are from the Vera Institute of Justice's Incarceration Trends data. Every office link was opened and checked against the office's own site between September 23, 2026 and September 30, 2026.
Seneca County, Ohio, has about 55,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Seneca County is held at the county jail, run by the Seneca County Sheriff's Office, and the jail's record of each person held is a public record. This guide says where to look for someone in custody, what the jail holds and who books people into it.
This guide covers the search, the jail, who books people, state prison and common questions.
Related guides: Seneca County public records, Seneca County arrest records, Seneca County warrants, Seneca County criminal records, Seneca County court records, Ohio arrest records and Ohio inmate search.
Finding Someone in Custody in Seneca County
A person kept in custody after an arrest in Seneca County is held at the county jail, run by the Seneca County Sheriff's Office, whichever agency made the arrest.
SearchSystems opened and checked the jail page of the Seneca County Sheriff's Office at senecacountyso.org/divisions/records (page title: Records | Seneca County Ohio Sheriff's Office), phone (419) 447-3456, which answered when SearchSystems opened it on September 23, 2026.
That page is the office's jail information page rather than a roster, so a search for a particular person goes through the office at (419) 447-3456.
The Seneca County Jail by the Numbers
On an average day in 2023 the jail held about 160 people, down from about 200 in 2019. Its rated capacity in 2023 was 185 beds, and it ran at 89 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Seneca County has about 55,000 residents (2024 Census Bureau estimate), so the jail holds about 30 people for every 10,000 residents.
Who Books People Into the Seneca County Jail
The Seneca County Sheriff's Office and the agencies that report for Tiffin, Fostoria, Bloomville, Bettsville, Republic and New Riegel make the arrests that end in a booking in Seneca County.
The Green Springs Police Department is listed by the FBI across two counties including Seneca County, so its arrests are not broken out for Seneca County here.
The largest arrest counts reported to the FBI were Republic's 1,152 for 2025, New Riegel's 1,152 for 2025 and Bloomville's 1,152 for 2025.
Together, the seven agencies in Seneca County with all twelve months of 2025 on file reported 5,191 arrests to the FBI that year. Those kept in custody were booked into the county jail; a person cited and released at the scene was not.
The counts, agency by agency and year by year, are in Seneca County arrest records.
From the Jail to State Prison
The jail holds people awaiting trial and people serving short sentences. A person sentenced to prison in Seneca County serves the sentence in a facility of the Ohio Department of Rehabilitation and Correction, whose inmate locator is at appgateway.drc.ohio.gov/OffenderSearch.
Frequently Asked Questions
How do I find an inmate in Seneca County?
Ask the Seneca County Sheriff's Office at (419) 447-3456; its jail page SearchSystems verified is at senecacountyso.org/divisions/records.
How many people are in the Seneca County jail?
About 160 on an average day in 2023, the latest year in the Vera Institute's jail data, against a rated capacity of 185 beds.
What is the phone number for the Seneca County jail?
(419) 447-3456, the number on the page of the Seneca County Sheriff's Office SearchSystems verified.
Where do people sentenced to prison in Seneca County go?
To a facility of the Ohio Department of Rehabilitation and Correction; its inmate locator is at appgateway.drc.ohio.gov/OffenderSearch.
Is this the official Seneca County website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official county, court and state offices described above and does not hold records, charge for them or take requests.