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 30, 2026.
Rochester, Michigan, in Oakland County, has about 13,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Rochester is held at the county jail, run by the Oakland 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: Rochester public records, Oakland County inmate search, Rochester arrest records, Rochester warrants, Rochester criminal records, Rochester court records, Michigan arrest records and Michigan inmate search.
Finding Someone in Custody in Rochester
The county jail, run by the Oakland County Sheriff's Office, holds everyone kept in custody after an arrest in Rochester, from every agency.
SearchSystems opened and checked the jail page of the Oakland County Sheriff's Office at oaklandcountymi.gov/government/sheriff (page title: Sheriff | Oakland County, MI), phone 248-647-1141, 4280 Telegraph Road Bloomfield Hills, MI 48302, 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 248-647-1141.
The Oakland County Jail by the Numbers
On an average day in 2024 the jail held about 1,050 people, down from about 1,300 in 2019. Its rated capacity in 2023, the last year with a capacity figure, was 1,664 beds, and it ran at 68 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Oakland County has about 1.3 million residents (2024 Census Bureau estimate), so the jail holds about 8 people for every 10,000 residents.
Who Books People Into the Oakland County Jail
The Oakland County Sheriff's Office and the agency that reports for Rochester (filed by the FBI as Rochester Police Department) make the arrests that end in a booking in and around Rochester.
The FBI's agency list also places two campus police departments, one state police unit and one other agency in Oakland County (the arrest records guide names each one).
The Fenton Police Department is listed by the FBI across two counties including Oakland County, so its arrests are not broken out for Oakland County here.
The largest arrest counts reported to the FBI were Pontiac's 2,801 for 2025, Southfield's 1,672 for 2025 and Farmington Hills's 1,448 for 2025.
Together, the 51 agencies in Oakland County with all twelve months of 2025 on file reported 17,547 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 Rochester arrest records.
From the Jail to State Prison
A sentence of more than a year is served in state prison, not the jail; the Michigan Department of Corrections lists its inmates at mdocweb.state.mi.us/otis2.
Frequently Asked Questions
How do I find an inmate in Rochester?
Ask the Oakland County Sheriff's Office at 248-647-1141; its jail page SearchSystems verified is at oaklandcountymi.gov/government/sheriff.
How many people are in the Oakland County jail?
About 1,050 on an average day in 2024, the latest year in the Vera Institute's jail data, against a rated capacity of 1,664 beds.
What is the phone number for the Oakland County jail?
248-647-1141, the number on the page of the Oakland County Sheriff's Office SearchSystems verified.
Where do people sentenced to prison in Oakland County go?
To a facility of the Michigan Department of Corrections; its inmate locator is at mdocweb.state.mi.us/otis2.
Is this the official Rochester 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.