The Cass County Inmate Population
The most important fact about the Cass County inmate population is the official no-jail finding. The Cass County Sheriff's Department is a real countywide law-enforcement agency, but the Illinois Sheriffs' Association profile reviewed in the research lists Cass County's jail administrator as "No Jail," the jail address as "N/A," and the number of jail beds as "N/A." That means a current Cass County arrest may create sheriff records, court records, and receiving-jail records without creating a Cass-owned jail roster entry.
For a new arrest, the Cass County inmate population workflow starts with the sheriff or the arresting municipal police agency. If detention is required, the person may be housed at a serving facility. The mapped facility for this build is Menard County Detention Facility, because Menard's official page describes an operating detention facility and local records document Cass holds there. Sentenced state prisoners move into the Illinois Department of Corrections system, which is separate from local jail custody.
Definition: In Cass County, "inmate population" means custody records split across the sheriff, a receiving jail, court filings, IDOC, BOP, ICE, and VINELink, not a single Cass jail count.
Cass County Inmate Population Statistics
Official population statistics are limited because the county is not listed as operating a jail. The strongest local measures are therefore status measures: no Cass jail beds in the sheriff directory, no Cass online roster located on the official site, one confirmed serving detention facility in the Facility Map, and one Cass-specific IDOC parole count from the state annual report. Resident-population facts from the U.S. Census help frame Cass County, but they are not jail counts.
| Measure | Figure | Source / Year |
|---|---|---|
| Cass County jail beds | N/A / No Jail | Illinois Sheriffs' Association profile, accessed June 2026 |
| Official Cass online jail roster | Not located | Cass sheriff page and official-site sweep, June 2026 |
| Confirmed serving facility | Menard County Detention Facility | Facility Map and Menard sheriff page |
| Cass County resident population estimate | 12,713 | U.S. Census QuickFacts, July 1, 2024 |
| Cass County adult parole population | 16 | IDOC FY24 Annual Report, June 30, 2024 |
| IDOC average daily prison population | 29,778 | IDOC FY24 Annual Report |
The IDOC Jail and Detention Standards Unit reports that Illinois has 92 county jails across 102 counties and collects population statistics from county jails monthly. Cass County's no-jail listing fits that statewide structure.
Cass County Inmate Population Trends
A normal county-jail trend table would show average daily population, annual bookings, and capacity use. Cass County does not have that official jail series in the research file. The defensible trend is instead a custody-structure trend: local sheriff contact remains the first step, Menard is the confirmed serving-facility lead for documented Cass holds, and Illinois pretrial-release law changed the way detention decisions are handled after arrest.
| Year / Period | Figure or Status | Notes |
|---|---|---|
| 2010 Census | 13,642 residents | Census QuickFacts county context, not inmate count |
| 2020 Census | 13,042 residents | Resident population base for Cass County |
| July 1, 2024 | 12,713 residents | Estimated county population, down 2.5% from 2020 base |
| FY24 IDOC | 16 adult parolees in Cass County | State parole count, not local jail population |
| 2026 official directory finding | No Jail / N/A beds | Core reason no Cass jail ADP appears here |
Note: Do not read "No Jail" as "no arrests." Cass County still has law enforcement, court cases, and custody routing.
Who Makes Up the Cass County Inmate Population
No official Cass jail demographic dashboard was located. The research file therefore does not support a male-female inmate split, race table, pretrial-sentenced jail split, annual booking count, or average length of stay for a Cass-operated jail. What can be stated is how the population can be divided by system once a person is arrested or sentenced.
| System | Who It Covers | Best Access Point |
|---|---|---|
| Cass Sheriff | Arrest routing, release status, sheriff records, and FOIA requests | (217) 452-7718 or 101 N. Front St. |
| Menard serving jail | People housed there after local arrest, sentence, transfer, or some U.S. justice-system holds | Menard jail phone and public portal |
| Cass Circuit Clerk / Judici | Filed criminal cases, hearings, dispositions, fines, and public terminal records | Judici Cass case search |
| IDOC | Sentenced Illinois state prisoners and parolees | IDOC individual-in-custody locator |
| BOP / ICE | Federal sentenced custody or immigration custody | BOP Inmate Locator or ICE ODLS |
Census demographic facts still matter for search quality. Cass County's 2024 estimated population was 12,713, and the county had a large Hispanic or Latino population share and a notable foreign-born share in Census data. For ICE searches or name-based jail searches, exact spelling, hyphenated names, date of birth, and country of birth can make the difference between a useful result and a miss.
Cass County Jail Capacity and Overcrowding
Cass County does not have a published local jail capacity in the official material reviewed. The ISA profile gives the key capacity answer as "N/A," and the Cass sheriff page does not publish a jail address, bed count, visitation page, commissary page, or booking report. That prevents a responsible comparison of Cass jail beds to a current Cass jail population.
Menard County Detention Facility also should not be turned into a Cass-only population measure. Menard's official page says the facility opened in 1984 and houses locally arrested or sentenced persons plus some persons held for prosecution by the United States justice system. The research supports using Menard operational details for people confirmed there, but not a Cass-only Menard population count.
Laws Governing the Cass County Inmate Population
Illinois law explains both public access and the limits on what can be released. Cass County booking and arrest information may be available by FOIA when a public body holds it, but exemptions can still protect active investigations, confidential material, juvenile records, safety-sensitive details, or records affected by sealing and expungement. Jail standards and reporting rules apply to operating jails and help explain why a no-jail county does not have the same public data profile as a county jail.
Key Statutes:
5 ILCS 140/3 gives the public a process to inspect or request public records from Illinois public bodies.
5 ILCS 140/2.15 identifies arrest information criminal justice agencies must furnish, including photographs when available.
730 ILCS 125/7 requires a monthly committed-person list where a county jail exists.
20 Ill. Adm. Code Part 701 sets Illinois county jail standards for admissions, confinement, safety, and operations.
730 ILCS 210/3-5 requires reporting in-custody deaths to ICJIA within 30 days, with public summaries subject to redaction.
Cass County and the State Prison Population
A Cass County defendant does not become an IDOC individual in custody just because the charge is serious. IDOC begins after a state sentence or commitment to state custody. During the gap between arrest and sentencing, the best custody source may still be the Cass County Sheriff's Department or a receiving jail. Once IDOC receives the person, the public profile can show IDOC number, name, photos, parent institution, status or location, admission date, projected parole or discharge dates, and sentencing information.
The IDOC FY24 Annual Report gives the statewide context: 29,778 average daily prison population, 16,466 prison admissions, 17,442 exits, and 17,235 adult parolees statewide on June 30, 2024. It also lists 16 adult parolees in Cass County. Those figures are state prison and parole data, not Cass County jail population data.
How to Search the Cass County Inmate Population
The search path is a fallback chain because Cass County does not publish an official county jail roster. Start with the Cass County Sheriff's Department to identify whether the person was released, transferred, taken to court, or moved to a separate system. Then use the facility or record system that matches the answer.
- Call Cass County Sheriff's Department at (217) 452-7718 with the person's full legal name, date of birth if known, arrest date, arresting agency, and any case or citation number.
- If Cass says the person was taken to Menard, call Menard County Detention Facility at (217) 632-2273 and check the Menard public portal.
- If the question is charges, hearings, or disposition, search Judici or contact the Cass County Circuit Clerk.
- If the person was sentenced to Illinois prison, search IDOC by last name, IDOC number, or birthdate.
- If federal or immigration custody is possible, search the BOP Inmate Locator or ICE Online Detainee Locator System.
- Use Illinois VINELink for custody or court notifications where available.
Note: Genasys is a Cass County emergency-alert system, not an inmate-search app, warrant app, or jail roster.
Current Inmate Lookup in Cass County
A current lookup in Cass County is really a custody-location lookup. The first record to find is the current custodian. Cass does not offer a public roster field search, while Menard's official page says its public portal can show the current roster of Menard County Jail inmates. Static research could not inventory exact Menard roster fields, so exact profile fields should be verified in the portal or by phone.
| Lookup Channel | Search Fields or Inputs | Best Use | Limits |
|---|---|---|---|
| Cass Sheriff phone | Name, date of birth, arrest date, arresting agency, case number | First check after a Cass arrest | No public Cass roster found |
| Menard public portal | Current roster link, fields not fully captured from static access | Person confirmed or likely housed at Menard | Portal update timing not published |
| IDOC legacy form | Last name, IDOC number, or birthdate | Sentenced Illinois custody | Not for new pretrial county custody |
| BOP locator | Number search or first, middle, last name, race, sex, age | Federal custody from 1982 to present | Released status does not rule out local custody |
| ICE ODLS | A-number and country of birth, or exact biographical search | Adult ICE custody or CBP custody over 48 hours | No under-18 searches; exact data matters |
Past and Released Inmate Records
Released or past Cass County inmate records require a different path than a current-custody check. If the person was cited and released or quickly released after arrest, Judici and the Cass Circuit Clerk may show the court case before any receiving-jail public portal is useful. For booking or arrest records held by Cass County, use the county FOIA form and address the request to the Cass County Sheriff's Department unless the county directs another custodian.
The FOIA request should identify the person, date of arrest, arresting agency, and records sought. For arrest information under 5 ILCS 140/2.15, the research suggests asking for charges, arrest time and location, arresting or investigating agency, custody receive, discharge or transfer times, booking number if any, and photograph when available and not exempt. If the intake record is held by Menard or another receiving jail, a second request or call to that custodian may be needed.
What a Cass County Inmate Record Shows
A Cass-hosted jail profile was not available to inspect. Instead, record contents depend on the source. A receiving jail may have a roster entry. IDOC has state prisoner profile fields. Judici and the Circuit Clerk have filed court case fields. Federal and ICE systems have their own limited result sets.
| Record Source | What It Can Show |
|---|---|
| Receiving jail roster | Current custody if the facility publishes or confirms it; exact Menard fields were not captured in static research. |
| IDOC profile | IDOC number, name, front and side photos, parent institution, status/location, demographics, admission date, parole or discharge dates, and sentencing information. |
| Judici / Circuit Clerk | Criminal charges, case events, hearing dates, dispositions, sentences, fines or fees, and public documents where available. |
| BOP result | Name, register number, age, race, sex, release date, and federal location or released status. |
| ICE ODLS | Current adult ICE custody information when exact A-number or biographical data matches. |
County Jail vs. State Prison: Where to Look
Cass County custody searches often fail when the wrong system is searched. A person arrested in Beardstown, Virginia, Ashland, Arenzville, Chandlerville, or by a Cass deputy may still be in local custody routing. A person already sentenced to prison should be searched in IDOC. Federal and immigration custody have separate systems.
| Local / Serving Jail | State Prison (IDOC) | |
|---|---|---|
| Who is held | Pretrial detainees, short local sentences, transferred local holds | Sentenced Illinois prisoners and parolees |
| Run by | Cass Sheriff for routing; Menard Sheriff if housed at Menard | Illinois Department of Corrections |
| Where to look | Cass Sheriff phone, Menard jail phone, Menard portal, FOIA | IDOC current individual-in-custody locator |
| Photos | Booking photo access depends on receiving jail and FOIA limits | IDOC profile photos are state identification images |
State and Federal Inmate Search from Cass County
Use the IDOC accessible search form when the person has been sentenced to Illinois state custody. The form lets users choose last name, IDOC number, or birthdate. IDOC also publishes a public information phone number, (217) 558-2200, for individual-in-custody information.
Use BOP when a federal sentence or federal custody is plausible. Use ICE ODLS when immigration detention is plausible, especially where name spelling, country of birth, or A-number details are known. Use VINELink for notification support, not as a complete substitute for the actual custodian. Cass County has no BOP, ICE, or IDOC facility physically mapped inside the county in the official facility lists reviewed.
Cass County Detention Facilities
The Facility Map resolves one detention-facility page for this Cass County project. Menard appears first because it is the confirmed serving facility in the research, not because it is owned by Cass County.
- Menard County Detention Facility - a Menard County Sheriff's Department facility in Petersburg that can house locally arrested or sentenced people, some U.S. justice-system holds, and documented Cass County holds.
Nearby Morgan and Schuyler facilities were reviewed as possible backup facilities, but the research did not locate direct official proof that either is the routine current Cass holding facility. Call Cass Sheriff before driving to any jail facility.
Cass County Inmate Population FAQ
How big is the Cass County inmate population?
Official sources reviewed do not publish a live Cass County jail population because the Illinois Sheriffs' Association profile lists Cass County as having no jail and no jail beds. The honest figure is not a daily headcount. It is a no-jail status, one mapped serving facility, and separate state, federal, court, and notification systems.
How do I search the Cass County inmate population tonight?
Call Cass County Sheriff's Department first at (217) 452-7718. Ask whether the person was released, transferred, taken to court, or moved to a receiving facility. If Menard is named, call Menard jail at (217) 632-2273 and check the Menard public portal.
Can I use IDOC for a new Cass County arrest?
Usually no. IDOC is for sentenced state custody and parole. A new arrestee may not appear in IDOC until after sentencing and transfer. For a current local arrest, start with Cass Sheriff and any receiving jail, then use court records for filed charges.
Where do court charges appear after a Cass County arrest?
Post-1998 Cass County court records can be searched through Judici or the public terminal in the Cass County Circuit Clerk's office. Court records show the filed case path, which may differ from early booking allegations.
Does Cass County publish mugshots?
No official Cass County mugshot gallery, recent-bookings page, or jail roster with photos was found. A photograph may be requested under Illinois arrest-information law when available and not exempt, but no official Cass mugshot board should be promised.