How to Look Up Oakland County Jail Population Data
The most current official anchor for Oakland County jail population is the Sheriff's Oakland County Jail page. That page publishes the Main Jail construction year, the floor-by-floor inmate capacity, the Annex direct-supervision capacity, the East Annex status, the health clinic cell count, the 2024 admissions number, and the Sheriff's overcrowding statement. The Corrections, Courts and Technology Group page publishes the system-wide supervision number.
National and state comparison numbers come from the federal Bureau of Justice Statistics jail inmates data series and the Vera Institute county-level dataset. Both publish jail population per 100,000 residents and pretrial-versus-sentenced splits at the county level. Those are the right context sources for an Oakland County jail population search that needs more than the Sheriff's facility numbers.
Oakland County Jail Capacity Overview
Oakland County publishes capacity by facility area rather than a single total. The Sheriff's Main Jail at 1201 North Telegraph Road was built in 1973. The Annex direct-supervision facility was completed in March 1989. The East Annex satellite facility was constructed in 2003, repurposed in 2010, moved into Corrective Services in 2022, and is currently closed. A 24-hour health clinic operates inside the Main Jail.
| Facility / Area | Capacity | Status |
|---|---|---|
| Main Jail second floor | ~440 | Maximum security and general population housing. |
| First-floor intake | 109 | Holding tanks and observation cells for new arrests. |
| Health clinic | 7 single cells | 24-hour, seven-day clinic. |
| Annex | 487 | Direct supervision facility attached to the Main Jail. |
| East Annex | 398 | Built 2003, repurposed 2010, moved to Corrective Services 2022, currently closed. |
If East Annex is excluded because it is closed, the listed active capacity areas total roughly 1,043 plus seven clinic cells. If East Annex is included as physical designed capacity, the listed capacity reaches about 1,448 plus seven clinic cells. The Sheriff also says Corrective Services supervises approximately 1,664 inmates across the corrections system, which counts people on supervision beyond the physical facility totals.
Average Daily Population
Oakland County's official anchor for jail volume is annual admissions. The Sheriff's jail page says the Corrective Services Division admits approximately 12,000 new arrests per year and specifically admitted 12,247 prisoners in 2024. That count is bookings, not unique people; the same person booked twice in a year counts twice in admissions. Average daily population (ADP) is a different measure that tracks how many people are in custody on a typical day.
Official current pages inspected did not publish a single ADP number, but the Corrections, Courts and Technology Group page describes supervision of approximately 1,664 inmates in the corrections system. That figure is the closest official anchor for current Corrective Services supervision load.
Demographic Breakdown
The Sheriff's official pages inspected did not publish a current public age, race, sex, or mental-health breakdown of the Oakland County jail population. Official county annual reports and budget books are the cleanest local source for that breakdown. The federal Bureau of Justice Statistics jail inmates series and the Vera Institute county-level dataset publish state and national demographic averages that can be used for context.
For Oakland County data calls, the Sheriff's Corrective Services Division is the right office. The Sheriff page describes Corrective Services as supervising security levels from maximum security to low-level offenders. The Electronic Monitoring (tether) Work Release Program replaced in-jail Work Release status, which removes some eligible people from the in-facility population for the length of their work release.
Pretrial vs Sentenced Population
County jails in Michigan hold three broad groups: pretrial detainees waiting for case resolution, sentenced misdemeanants serving short county jail sentences, and felony pretrial defendants whose felony cases are pending in the 6th Circuit Court or being held over from district court. Some people are also held on out-of-county or out-of-state warrants and on MDOC parole or probation holds.
Pretrial detainees turn over fastest because cases either get bond, get a plea, or move to disposition. Sentenced misdemeanants stay for short, defined terms. Felony pretrial defendants stay longer when bond is high or denied. Without a published Oakland County split in the inspected pages, the BJS county jail series and the Vera Institute Incarceration Trends dataset are the right sources for an estimated split.
Misdemeanor vs Felony Population
Misdemeanor cases in Oakland County originate in district court. Maximum misdemeanor jail terms in Michigan typically run up to one year for high-court misdemeanors. Felony cases originate with arraignment in district court, move to preliminary examination, and then bind over to the 6th Circuit Court for trial and sentencing. People held pretrial on felony charges stay in the jail until release on bond, disposition, or MDOC transfer.
Sentenced felons who receive state prison terms move from the Oakland County Jail to the Michigan Department of Corrections and exit the local roster. Once they enter MDOC custody, they appear in the MDOC OTIS Offender Search rather than CLEMIS Inmate Locator. See the released inmates page for the OTIS field inventory and search limits.
Mental Health and Medical Population
Oakland County's Main Jail runs a 24-hour, seven-day health clinic with seven single cells. The Sheriff's page describes inmate programs that include medical services, mental health crisis intervention, counseling, adult education, recreation, visitation, and chaplaincy. PREA policy is zero tolerance for sexual abuse and harassment, with reporting through the visitation unit during business hours and the 24-hour inmate information line at 248-858-1800.
Mental health matters that rise into court proceedings are handled separately by the Oakland County Probate Court mental health division. Probate Mental Health records are not in Court Explorer because of MCL 330.1748 confidentiality limits. The Probate Court page lists Mental Health as a case area along with developmentally disabled matters.
State and National Context
The Bureau of Justice Statistics jail inmates report publishes a national jail incarceration rate per 100,000 residents, plus a state-level rate for Michigan. The Vera Institute Incarceration Trends dataset publishes county-level jail population rates over time, including Oakland County. Together those sources give comparison context that the Sheriff's local pages do not publish directly.
| Comparison | Anchor Source | Notes |
|---|---|---|
| Oakland County jail capacity | Sheriff's Oakland County Jail page | Facility-by-facility capacity counts, 2024 admissions of 12,247. |
| Michigan state jail rate | BJS county jail inmate data series | Published in BJS annual jail inmates reports. |
| U.S. national jail rate | BJS jail inmates report | Per 100,000 residents national rate. |
| Long-term Oakland trend | Vera Institute Incarceration Trends | County-level pretrial and sentenced trends over time. |
The Sheriff's Office says jail overcrowding has been a recurring issue, but jail use remains at a manageable level because of legislative changes, innovative programs, and the Oakland County Criminal Justice Coordinating Council working with the Sheriff's Office. The Sheriff also notes that jail tours have decreased over the past few years because of consistent overcrowding, though some still occur through the JOLT juvenile court-mandated program and Oakland County Youth Assistance and U-Turn Program tours.
Population Trends Over Time
The current official anchor is 12,247 admissions in 2024 against an approximate 12,000-per-year general figure on the Sheriff's page. The same page says the Corrective Services Division has worked with the Oakland County Criminal Justice Coordinating Council to keep jail use at a manageable level. The Electronic Monitoring tether program replaced in-jail Work Release status, which reduces in-facility pressure for eligible people.
Five-year annual admission detail was not posted in the inspected official pages. Vera Institute county-level data can fill in the trend line, with the caveat that Vera's classification of pretrial, sentenced, and federal holds may differ from the Sheriff's internal categories. The East Annex closure also affects facility-level capacity comparisons over time, because its 398 beds are listed but not currently used.
Searching for Oakland County Inmate Records by Name
This page covers Oakland County jail population data, not individual inmate lookups. For a name-based search of the current Oakland County jail roster, use the CLEMIS Inmate Locator linked from the Sheriff's site. The portal sits at apps.clemis.org/ClemisInmLoc and requires a Google reCAPTCHA and Oakland County Jail selection before search. The full step-by-step walkthrough, search-field table, and inmate profile field inventory live on the inmate records page. For state prison custody, name search runs through MDOC OTIS; for federal custody, name search runs through the BOP Inmate Locator.
Where the Data Comes From
The numbers on this page come from official Oakland County and federal sources. The Sheriff's Office is the source for Main Jail construction year, capacity by floor and facility, the East Annex status, and 2024 admissions. The Corrections, Courts and Technology Group page is the source for the systemwide 1,664 supervision count and the description of Major Larry Perry as the group commander. BJS and Vera Institute county-level data are the sources for state and national comparison rates.
Some specific datapoints are not published in the inspected official county pages, including current age, race, sex, pretrial/sentenced ratio, mental health holds, average length of stay, cost per inmate per day, and officer-to-inmate ratio. Those gaps should be filled from the Oakland County annual budget book, the Sheriff's annual report, or BJS and Vera datasets, with the source labeled clearly so the reader knows which numbers are local and which are national or state benchmarks.
Note: Jail capacity is not the same as average daily population; the figures listed here describe the Sheriff's published capacity by area and the 2024 admissions count, not the count on a given day.