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 1, 2026.
Marion County, Indiana, has about 982,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Marion County is held at the county jail, run by the indy.gov: Marion 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: Marion County public records, Marion County arrest records, Marion County warrants, Marion County criminal records, Marion County court records, Indiana arrest records and Indiana inmate search.
Finding Someone in Custody in Marion County
A person kept in custody after an arrest in Marion County is held at the county jail, run by the indy.gov: Marion County Sheriff’s Office, whichever agency made the arrest.
SearchSystems opened and checked the jail page of the indy.gov: Marion County Sheriff’s Office at indy.gov/agency/marion-county-sheriffs-office, which answered when SearchSystems opened it on September 30, 2026.
That page is the office's jail information page rather than a roster.
The Marion County Jail by the Numbers
On an average day in 2024 the jail held about 2,130 people, down from about 2,290 in 2019. Its rated capacity in 2023, the last year with a capacity figure, was 2,985 beds, and it ran at 84 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Marion County has about 982,000 residents (2024 Census Bureau estimate), so the jail holds about 22 people for every 10,000 residents.
Who Books People Into the Marion County Jail
The indy.gov: Marion County Sheriff’s Office and the agencies that report for Lawrence, Beech Grove and Speedway make the arrests that end in a booking in Marion County.
The FBI's agency list also places four campus police departments, two other agencies and one state agency in Marion County (the arrest records guide names each one).
The Cumberland Police Department is listed by the FBI across two counties including Marion County, so its arrests are not broken out for Marion County here.
The largest arrest counts reported to the FBI were Indianapolis's 21,474 for 2025, Lawrence's 770 for 2025 and Beech Grove's 380 for 2025.
Together, the four agencies in Marion County with all twelve months of 2025 on file reported 22,992 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 Marion 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 Marion County serves the sentence in a facility of the Indiana Department of Correction, whose inmate locator is at offenderlocator.idoc.in.gov/idoc-ofs-1.0.2/ofs.
Frequently Asked Questions
How do I find an inmate in Marion County?
Ask the indy.gov: Marion County Sheriff’s Office; its jail page SearchSystems verified is at indy.gov/agency/marion-county-sheriffs-office.
How many people are in the Marion County jail?
About 2,130 on an average day in 2024, the latest year in the Vera Institute's jail data, against a rated capacity of 2,985 beds.
Where do people sentenced to prison in Marion County go?
To a facility of the Indiana Department of Correction; its inmate locator is at offenderlocator.idoc.in.gov.
Is this the official Marion 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.