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.
St. Johns County, Florida, has about 335,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in St. Johns County is held at the county jail, run by the St. Johns 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: St. Johns County public records, St. Johns County arrest records, St. Johns County warrants, St. Johns County criminal records, St. Johns County court records, Florida arrest records and Florida inmate search.
Finding Someone in Custody in St. Johns County
A person kept in custody after an arrest in St. Johns County is held at the county jail, run by the St. Johns County Sheriff's Office, whichever agency made the arrest.
SearchSystems opened and checked the jail page of the St. Johns County Sheriff's Office at sjso.org/detention-center (page title: Corrections Division | St. Johns County Sheriff's Office), phone 904.209.1443, 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 904.209.1443.
The St. Johns County Jail by the Numbers
So far in 2026 the jail has held about 370 people on an average day, down from about 420 in 2019. Its rated capacity in 2023, the last year with a capacity figure, was 760 beds, and it ran at 59 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
St. Johns County has about 335,000 residents (2024 Census Bureau estimate), so the jail holds about 11 people for every 10,000 residents.
Who Books People Into the St. Johns County Jail
The St. Johns County Sheriff's Office and the agencies that report for St. Augustine and St. Augustine Beach make the arrests that end in a booking in St. Johns County.
The FBI's agency list also places five state agencies, one other agency and one state police unit in St. Johns County (the arrest records guide names each one).
The largest arrest counts reported to the FBI were the St. Johns County Sheriff's Office's 3,699 for 2025, St. Augustine's 965 for 2023 and St. Augustine Beach's 113 for 2023.
The St. Johns County Sheriff's Office reported 3,699 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 St. Johns 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 St. Johns County serves the sentence in a facility of the Florida Department of Corrections, whose inmate locator is at fdc.myflorida.com.
Frequently Asked Questions
How do I find an inmate in St. Johns County?
Ask the St. Johns County Sheriff's Office at 904.209.1443; its jail page SearchSystems verified is at sjso.org/detention-center.
How many people are in the St. Johns County jail?
About 370 on an average day so far in 2026, against a rated capacity of 760 beds.
What is the phone number for the St. Johns County jail?
904.209.1443, the number on the page of the St. Johns County Sheriff's Office SearchSystems verified.
Where do people sentenced to prison in St. Johns County go?
To a facility of the Florida Department of Corrections; its inmate locator is at fdc.myflorida.com.
Is this the official St. Johns 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.