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 October 9, 2026.
Seminole County, Florida, has about 495,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Seminole County is held at the county jail, run by the Seminole 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: Seminole County public records, Seminole County arrest records, Seminole County warrants, Seminole County criminal records, Seminole County court records, Florida arrest records and Florida inmate search.
Finding Someone in Custody in Seminole County
A person kept in custody after an arrest in Seminole County is held at the county jail, run by the Seminole County Sheriff's Office, whichever agency made the arrest.
SearchSystems opened and checked the custody page of the Seminole County Sheriff's Office at seminolecosheriff.com/inmate-search (page title: Inmate Search | Seminole County Sheriff's Office), phone 877-654-8463, which answered when SearchSystems opened it on September 23, 2026.
Someone booked recently shows on that page; someone cited and released at the scene, or held a few hours at a city station, does not.
The Seminole County Jail by the Numbers
So far in 2026 the jail has held about 860 people on an average day, down from about 930 in 2019. Its rated capacity in 2023, the last year with a capacity figure, was 1,384 beds, and it ran at 65 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Seminole County has about 495,000 residents (2024 Census Bureau estimate), so the jail holds about 17 people for every 10,000 residents.
Who Books People Into the Seminole County Jail
The Seminole County Sheriff's Office and the agencies that report for Sanford, Altamonte Springs, Oviedo, Winter Springs, Casselberry, Longwood and one more cities make the arrests that end in a booking in Seminole County.
The FBI's agency list also places five state agencies, one other agency and one state police unit in Seminole County (the arrest records guide names each one).
The Seminole County Sheriff's Office reported 0 arrests to the FBI for 2025. 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 Seminole County arrest records.
From the Jail to State Prison
A sentence of more than a year is served in state prison, not the jail; the Florida Department of Corrections lists its inmates at fdc.myflorida.com.
Frequently Asked Questions
How do I find an inmate in Seminole County?
Look on the custody page of the Seminole County Sheriff's Office at seminolecosheriff.com/inmate-search, or call 877-654-8463. It covers people booked into the county jail.
How many people are in the Seminole County jail?
About 860 on an average day so far in 2026, against a rated capacity of 1,384 beds.
What is the phone number for the Seminole County jail?
877-654-8463, the number on the page of the Seminole County Sheriff's Office SearchSystems verified.
Where do people sentenced to prison in Seminole County go?
To a facility of the Florida Department of Corrections; its inmate locator is at fdc.myflorida.com.
Is this the official Seminole 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.