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.
Duluth, Minnesota, in St. Louis County, has about 88,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Duluth is held at the county jail, run by the St. Louis 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 and common questions.
Related guides: Duluth public records, St. Louis County inmate search, Duluth arrest records, Duluth warrants, Duluth criminal records, Duluth court records, Minnesota arrest records and Minnesota inmate search.
Finding Someone in Custody in Duluth
The county jail, run by the St. Louis County Sheriff's Office, holds everyone kept in custody after an arrest in Duluth, from every agency.
SearchSystems opened and checked the custody page of the St. Louis County Sheriff's Office at stlouiscountymn.gov/departments-a-z/sheriff/jail/jail-roster (page title: Jail Roster), phone 218-625-3581, 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 St. Louis County Jail by the Numbers
On an average day in 2023 the jail held about 95 people, down from about 260 in 2019. Its rated capacity in 2023 was 144 beds, and it ran at 66 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
St. Louis County has about 201,000 residents (2024 Census Bureau estimate), so the jail holds about 5 people for every 10,000 residents.
Who Books People Into the St. Louis County Jail
The St. Louis County Sheriff's Office and the agency that reports for Duluth (filed by the FBI as Duluth Police Department) make the arrests that end in a booking in and around Duluth.
The FBI's agency list also places these agencies in St. Louis County: the University of Minnesota at Duluth (campus police); the State Patrol at Virginia and the State Patrol at Duluth (state police).
The largest arrest counts reported to the FBI were Duluth's 2,857 for 2025, the St. Louis County Sheriff's Office's 675 for 2025 and Hibbing's 537 for 2025.
Together, the 13 agencies in St. Louis County with all twelve months of 2025 on file reported 5,143 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 Duluth arrest records.
Frequently Asked Questions
How do I find an inmate in Duluth?
Look on the custody page of the St. Louis County Sheriff's Office at stlouiscountymn.gov, or call 218-625-3581. It covers people booked into the county jail.
How many people are in the St. Louis County jail?
About 95 on an average day in 2023, the latest year in the Vera Institute's jail data, against a rated capacity of 144 beds.
What is the phone number for the St. Louis County jail?
218-625-3581, the number on the page of the St. Louis County Sheriff's Office SearchSystems verified.
Is this the official Duluth 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.