Clinton County Inmate Population Overview
The most precise local jail figure in the research is the Illinois Department of Corrections inspection of the Clinton County Jail on March 12, 2024. IDOC recorded a 53-bed jail with 46 people in custody that day. That count is not an annual average and should not be treated as a current roster total. It is a dated official snapshot of the Clinton County inmate population held under the sheriff's operation at the local jail.
Clinton County also contains Centralia Correctional Center, an Illinois Department of Corrections prison. Centralia held 1,122 sentenced adult men as of June 30, 2024, according to IDOC. Those prisoners are physically in Clinton County, but they are not part of the sheriff's jail population. The split matters for every search. A person arrested in Carlyle, Breese, Trenton, New Baden, or another Clinton County community usually starts in the county jail system. A person sentenced to IDOC moves to a state prison record.
Clinton County Inmate Population Statistics
Official Clinton County inmate population numbers are strongest when they come from the IDOC jail inspection, IDOC's Centralia facility page, the Illinois Sheriffs' Association, and Census QuickFacts. The county jail was under total rated capacity on the inspection date, at 46 people in a 53-bed facility. The same inspection reported 38 male detainees and 8 female detainees. The female count was higher than the listed six female beds, so the number should be read as a housing-allocation nuance, not proof of a legal overcrowding finding.
The county population estimate also helps place the jail figure in context. Census QuickFacts estimated Clinton County at 37,128 residents on July 1, 2025. Using the IDOC and Census figures, the jail had about 143 beds per 100,000 residents, and the inspection-date jail count equaled about 124 people per 100,000 residents. Those are calculated rates from official source numbers.
| Measure | Figure | Source and Date |
|---|---|---|
| Clinton County Jail capacity | 53 total beds, 47 male and 6 female | IDOC jail inspection, March 12, 2024 |
| Clinton County Jail population | 46 total, 38 male and 8 female | IDOC jail inspection, March 12, 2024 |
| Percent of jail capacity | 86.8% | Calculated from IDOC inspection figures |
| County population | 37,128 | U.S. Census Bureau QuickFacts, July 1, 2025 estimate |
| Centralia operational capacity | 1,520 | IDOC facility page |
| Centralia prison population | 1,122 | IDOC facility page, June 30, 2024 |
Clinton County Inmate Population Trends
Clinton County does not have the kind of official public jail dashboard that would support a multi-year average daily population chart. IDOC's 2024 inspection found that monthly population reports had not been provided to the Jail and Detention Standards Unit since the prior compliance monitoring in March 2023. That finding explains why the Clinton County inmate population record has a solid inspection-date count but no official annual bookings, length-of-stay, or multi-year county jail trend series in the research.
The useful trend story is therefore about data boundaries. The local jail had 46 people on the IDOC inspection date in March 2024. Centralia Correctional Center had 1,122 people in state custody on June 30, 2024. The Pretrial Fairness Act also changed how new Illinois criminal cases move through pretrial release and detention after September 18, 2023, which affects jail admissions and releases statewide even when local day-by-day figures are not published.
| Date | Population Figure | What It Means |
|---|---|---|
| March 12, 2024 | Clinton County Jail: 46 | Inspection-date local jail population reported by IDOC. |
| June 30, 2024 | Centralia Correctional Center: 1,122 | Sentenced state-prison population in Clinton County. |
| 2023-2024 | Monthly jail reports: gap | IDOC noted missing monthly reports since March 2023 monitoring. |
Where Clinton County Inmates Are Held
The Clinton County Jail is the primary local detention facility. It holds adult pretrial detainees, county sentenced inmates, periodic imprisonment or weekenders, work-release inmates, people held for other counties if needed, and U.S. Marshals contract detainees. ICE also has an official detention-facility listing for the Clinton County Sheriff's Office, so immigration custody is a real lookup path when the facts point that way.
Centralia Correctional Center is a different system. It is a medium-security adult male state prison run by IDOC. It should be searched through the IDOC Individual in Custody Search, not through the Clinton County Jail. A person can have a Clinton County court case and later appear only in the state prison locator after sentencing and transfer.
- Clinton County Jail - the sheriff's local jail for county custody, contract federal custody, and possible ICE placement.
- Centralia Correctional Center - an IDOC prison for sentenced adult men, not a county jail roster facility.
Laws for Clinton County Jail Data
Illinois law explains why some jail records can be requested and why other details may be withheld. The county jail is a public body record source, but no law found in the research requires Clinton County to publish a live jail roster or mugshot gallery online. Public access instead runs through the jail phone, written FOIA requests, court records, VINE, and statewide or federal locators.
5 ILCS 140 makes public records available unless an exemption applies. 20 Ill. Admin. Code Part 701 sets county jail standards for records, admission, release, classification, mail, commissary, and supervision. IDOC's jail monitoring authority is cited in the Clinton County inspection under 730 ILCS 5/3-15-2(b).
The jail inspection ties those laws to local facts. IDOC documented the capacity, population, housing layout, service vendors, and recent compliance findings. It also recorded that monthly population reports had not been submitted on time since March 2023. That is a records issue as well as a population issue, because missing monthly reports limit what a resident can learn from state-level jail population records.
Search Clinton County Inmate Population
No official public Clinton County online jail roster was located on the county or sheriff website during research. That changes the lookup process. A current Clinton County inmate search should begin with the jail and then branch by custody type. The sheriff's official page lists the Corrections/Jail direct phone at (618) 594-4556, while FOIA requests for jail records go through the county's written request process when information is not available informally.
For a recent arrest, have the person's full legal name, date of birth or age, arrest date, and arresting agency ready. Ask whether the person is physically at Clinton County Jail, whether booking is complete, whether the person is held for Clinton County, another county, U.S. Marshals, or ICE, and whether staff can provide the next court date or release status.
- Call Clinton County Jail at (618) 594-4556 for current local custody.
- Use Illinois VINE for custody status and notification where available.
- File a written Clinton County FOIA request if older booking records or releasable jail documents are needed.
- Search IDOC when the person has been sentenced to state prison.
- Use the BOP Inmate Locator or ICE Online Detainee Locator for federal or immigration custody.
Clinton County Inmate Search Fields
Because no official public jail roster form was found, there is no verified Clinton County roster field list to reproduce. The practical search fields are the identifiers a jail, FOIA officer, VINE, IDOC, BOP, ICE, or court clerk can use to narrow a record. Use only facts that are known. A wrong date of birth or misspelled name can cause a missed match in a small county just as easily as in a large system.
| Lookup Channel | Useful Search Data | Best Use |
|---|---|---|
| Clinton County Jail | Full name, age or birth date, arrest date, arresting agency | Current local custody or booking status. |
| FOIA request | Full name, DOB if known, booking date, requested record type | Older jail or booking records. |
| IDOC locator | Last name, birthdate, IDOC number | Sentenced Illinois state prisoners. |
| BOP locator | Name, age, race, sex, or federal register/FBI/INS number | Federal sentenced prisoners from 1982 forward. |
| ICE ODLS | A-number or name, country of birth, birth date | Current ICE custody or CBP custody over 48 hours. |
Clinton County Inmate Records
An official jail record may include details created during admission even when those details are not posted online. Illinois jail standards cover identity verification, legality of confinement, search procedures, fingerprints, photographs, property receipts, medical screening, phone-call access, and classification. Clinton County's inspection confirms that the jail uses kiosk orientation, contracted health services, and a two-floor housing layout with detention rooms and dorms.
The jail record is not the court record. Booking information explains why a person was received into custody. The prosecutor and court decide what charges become the filed criminal case. For filed charges, court dates, dispositions, fines, fees, or certified copies, use the Clinton County Circuit Clerk and Judici rather than the jail.
| Record Item | What Research Supports |
|---|---|
| Name and identity | Used for jail calls, FOIA requests, visitor forms, and locator searches. |
| Booking photograph | Admission standards include photographing, but no public mugshot feed was found. |
| Custody category | Federal, non-federal, USMS, ICE, and county custody may require different lookup channels. |
| Property and funds | Jail rules and standards address property receipts, kiosk deposits, JailATM, and money orders. |
| Visit eligibility | Weekenders are not permitted visits; visitors must meet Clinton County visiting rules. |
Clinton County Jail vs IDOC
The county jail and IDOC answer different questions. The Clinton County Jail is for local custody, intake, short local sentences, and contract holds. IDOC is for sentenced state-prison custody. Centralia Correctional Center is in Clinton County, but it is not run by Sheriff Dan Travous and it does not use the county jail's rules for mail, visits, or inmate lookup.
| Question | Clinton County Jail | IDOC / Centralia |
|---|---|---|
| Who runs it? | Clinton County Sheriff's Office | Illinois Department of Corrections |
| Who is held? | Pretrial, county sentenced, weekenders, work release, contract holds | Sentenced adult men in state custody |
| Lookup path | Jail phone, VINE, FOIA, in person | IDOC Individual in Custody Search |
| Visits and mail | County jail rules and IC Solutions | IDOC facility rules and approved scheduling |
Clinton County Records Screens
The official Clinton County Sheriff page is the local source for the sheriff's office, the jail phone line, the Franklin Street address, and jail-rule links.
That page supports the phone-first search route because no official public jail roster link was located in county navigation or the jail PDFs.
The IDOC Individual in Custody Search is the correct statewide locator after a Clinton County sentence leads to state-prison custody.
The locator does not replace the Clinton County Jail phone line for a new arrest, but it is the main search path once someone enters IDOC custody.
Clinton County Inmate Population FAQ
How big is the Clinton County inmate population?
IDOC counted 46 people at the Clinton County Jail on March 12, 2024, in a facility rated for 53 beds. Centralia Correctional Center, the IDOC prison in the county, held 1,122 people as of June 30, 2024. Those two figures should not be merged because one is sheriff custody and one is state prison custody.
Can Clinton County inmates be searched online?
No official public Clinton County Jail roster URL was found in the research. Start with the jail phone at (618) 594-4556. Then use VINE, FOIA, IDOC, BOP, ICE, or Judici depending on whether the question is custody, a sentenced prison transfer, federal custody, immigration detention, or filed court charges.
Why is Centralia listed on a Clinton County inmate site?
Centralia Correctional Center is physically in Clinton County and is listed by IDOC as a medium-security adult male prison. It is relevant to the broader Clinton County inmate population, but it is not the county jail. Search Centralia prisoners through IDOC.
Where are older booking records requested?
Older jail or booking records should be requested through the Clinton County FOIA process if they are not available from the jail by phone or in person. Court filings, dispositions, certified copies, and case history are handled by the Circuit Clerk and Judici, not by the jail.
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