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 25, 2026.
Streator, Illinois, in LaSalle County, has about 12,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Streator is held at the county jail, run by the La Salle 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: Streator public records, LaSalle County inmate search, Streator arrest records, Streator warrants, Streator police reports, Streator property records, Illinois arrest records and Illinois inmate search.
Finding Someone in Custody in Streator
The county jail, run by the La Salle County Sheriff's Office, holds everyone kept in custody after an arrest in Streator, from every agency.
SearchSystems opened and checked the custody page of the La Salle County Sheriff's Office at lasalleso.com/inmateSearch (page title: LaSalle Parish Sheriff's Office (LA)), 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 LaSalle County Jail by the Numbers
On an average day in 2019 the jail held about 110 people. Its rated capacity in 2019 was 306 beds, and it ran at 37 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
LaSalle County has about 108,000 residents (2024 Census Bureau estimate), so the jail holds about 11 people for every 10,000 residents.
Who Books People Into the LaSalle County Jail
The La Salle County Sheriff's Office and the agency that reports for Streator (filed by the FBI as Streator Police Department) make the arrests that end in a booking in and around Streator.
The FBI's agency list also places one more agency in LaSalle County: Tri-County Drug Enforcement Narcotics Team (other agency).
The Somonauk Police Department is listed by the FBI across two counties including LaSalle County, so its arrests are not broken out for LaSalle County here.
The largest arrest counts reported to the FBI were Sheridan's 1,152 for 2025, Ottawa's 618 for 2025 and Streator's 375 for 2025.
Together, the 13 agencies in LaSalle County with all twelve months of 2025 on file reported 2,788 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 Streator 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 LaSalle County serves the sentence in a facility of the Illinois Department of Corrections, whose inmate locator is at idoc.illinois.gov/offender/inmatesearch.html.
Frequently Asked Questions
How do I find an inmate in Streator?
Look on the custody page of the La Salle County Sheriff's Office at lasalleso.com/inmateSearch. It covers people booked into the county jail.
How many people are in the LaSalle County jail?
About 110 on an average day in 2019, the latest year in the Vera Institute's jail data, against a rated capacity of 306 beds.
Where do people sentenced to prison in LaSalle County go?
To a facility of the Illinois Department of Corrections; its inmate locator is at idoc.illinois.gov/offender/inmatesearch.html.
Is this the official Streator website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official city, county, court and state offices described above and does not hold records, charge for them or take requests.