The Fond du Lac County Inmate Population
The Fond du Lac County inmate population is not one single list. The sheriff's current-inmate roster covers adults held in the Fond du Lac County Jail. The county also operates the Fond du Lac County Secure Detention Facility for juveniles, but juvenile custody records are handled under different access rules and should not be treated like adult jail records. Taycheedah Correctional Institution is inside the county, yet it is a Wisconsin Department of Corrections prison, not a county jail. That split matters because the county roster, the Wisconsin DOC Offender Locator, and federal or immigration tools each answer a different custody question.
The local adult jail count changes as arrests, first appearances, bond decisions, probation holds, transfers, and short sentences move people in and out of custody. The sheriff's public roster is the best point-in-time view of current adult county custody. Formal average daily population and annual booking figures were not found in the official county pages captured for this build, so the population discussion relies on the official roster count, jail history, secure detention capacity, and DOC fact sheets rather than unsourced estimates.
Fond du Lac County Inmate Population Statistics
Official sources give several reliable population markers. The sheriff history page says the 2005 jail renovation increased capacity from 149 beds to a 300+ bed jail complex. The official current-inmate roster capture showed 228 entries in July 2026, which is a current-list snapshot rather than an average daily population. The secure juvenile facility has a rated capacity of 27 juveniles. The DOC figures for Taycheedah show the state-prison population that sits inside Fond du Lac County but outside sheriff custody.
| Measure | Figure | Source / Year |
|---|---|---|
| Fond du Lac County Jail capacity | 300+ bed jail complex | Sheriff history page, accessed July 2026 |
| Current adult jail roster count | 228 entries observed | Official roster capture, July 2026 |
| Secure Detention capacity | 27 juveniles | Official secure detention page, July 2026 |
| Taycheedah CI population | 985 PIOC | Wisconsin DOC FY25 fact sheet, June 30, 2025 |
| Taycheedah CI population | 1,037 PIOC | Wisconsin DOC At-a-Glance, May 2026 |
Fond du Lac County Inmate Population Trends
The available official trend line is strongest for facility capacity and the state-prison count. The county jail moved from a much smaller historic footprint to the modern 300+ bed complex after the 2005 renovation. The current roster count is a useful public snapshot, but it should not be read as the official average daily population. Taycheedah's DOC count rose from the FY25 fact-sheet figure to the May 2026 At-a-Glance figure, which shows why sentenced state prisoners should be counted separately from the local jail population.
| Year or Date | Population / Capacity | Notes |
|---|---|---|
| 2005 renovation | 149 beds to over 300 | Sheriff history describes the jail expansion and security update. |
| June 30, 2025 | 985 PIOC at Taycheedah | Wisconsin DOC TCI FY25 fact sheet. |
| May 31, 2026 | 1,037 PIOC at Taycheedah | Wisconsin DOC DAI At-a-Glance. |
| May 31, 2026 | 23,492 adult institution PIOC statewide | Wisconsin DOC statewide adult institution total. |
| July 2026 roster capture | 228 current-inmate entries | Point-in-time sheriff roster list, not ADP. |
Fond du Lac County Custody Status
The public adult jail roster gives status categories instead of demographic percentages. Observed Fond du Lac County Jail statuses include pre-trial detainee, sentenced detainee, pre-trial/probation hold, probation/parole hold, and out-of-county warrant. These terms help explain why two people with similar arrest dates may have different release paths. A pre-trial detainee may still be waiting for a bond or charging decision. A sentenced detainee may be serving a local jail sentence. A probation or parole hold can block release even when the new case has a bond route.
- Pre-trial detainee
- A person held before the court case reaches final disposition.
- Sentenced detainee
- A person serving a local jail sentence rather than a DOC prison sentence.
- Probation or parole hold
- A custody hold tied to alleged supervision violations.
- Out-of-county warrant
- A warrant from another jurisdiction that may require transfer or separate clearance.
Fond du Lac County Jail Capacity
Fond du Lac County has unusually clear local jail history. The county was organized in 1839, gained judicial status in 1844, and elected its first sheriff in 1848. The first courthouse used its first floor as a jail. A dedicated 1869 jail near Linden Street and Western Avenue included separate sheriff living quarters. The safety building replaced that older jail in 1954. The modern jail grew in 2005, when the Sheriff's Office and Jail renovation remodeled offices, added a training room, expanded the jail, updated security, and raised capacity from 149 beds to more than 300.
Official county pages captured for this build did not publish a current average daily population, annual bookings, average length of stay, or official over-capacity dashboard. For that reason, capacity claims on the Fond du Lac County inmate population should stay close to the sheriff's own history page and roster data. Local news has discussed aging jail conditions and crowding, but those reported figures were not used as primary statistics because the build source set is official-source-first.
Laws Governing Fond du Lac County Jail Data
Wisconsin law frames how jail custody is run and how records can be requested. The sheriff's jail information page cites the sheriff's duty to take charge of the jail and the people held there. Wisconsin public-records law favors public access to government records, but access is not unlimited. Juvenile records, investigatory details, redactions, sealed matters, court limits, and the public-records balancing test can affect what is released.
Key Statutes:
Wis. Stat. 59.27 assigns the sheriff charge and custody of the county jail and people in jail.
Wis. Stat. 19.31 states Wisconsin's policy favoring broad public information about government affairs.
Wis. Stat. 19.35 gives requesters the right to inspect and copy public records unless another law limits access.
Wis. Admin. Code DOC 350 sets minimum standards for jail design, construction, and operation.
DOC 350.20 requires jail well-being check systems and personal-observation policies.
Fond du Lac County State Prison Population
Taycheedah Correctional Institution is part of the Wisconsin prison system and is physically located in Fond du Lac County. It holds adult female offenders in maximum- and medium-security custody and serves as the intake, assessment, and evaluation site for female inmates sentenced to adult DOC custody. The Wisconsin DOC FY25 fact sheet reported 985 persons in DOC care at Taycheedah as of June 30, 2025. The May 2026 DAI At-a-Glance reported 1,037 at Taycheedah and 23,492 across Wisconsin adult institutions.
Those people are not listed through the county current-inmate roster unless they are temporarily in county custody for a separate local reason. Sentenced DOC custody uses the Wisconsin DOC Offender Locator. DOC also states that its database does not provide county jail inmates, adjudicated juvenile offenders, or all possible offender information.
How to Search Fond du Lac County Inmates
The official current-inmate roster at fdlsheriff.fdlco.wi.gov is the first search channel for adults held in Fond du Lac County Jail. The roster is free to view, and no login was observed in the research capture. It lists current inmates in a table with a Detail link, the person's name, and judicial status. The capture showed an entries-per-page control rather than a text search field, so use the roster as a current list unless the live page later exposes a search box.
The roster detail page is also the bridge to court records. The sample detail page showed arrest information, law-enforcement case numbers, offense rows, court case numbers, disposition fields, and WCCA links. It also warned that the District Attorney's Office can add or modify charges during review, and those later changes should appear on the matching WCCA case page.
- Open the Fond du Lac County current-inmate roster.
- Use the page-length control to view 10, 25, 50, or 100 entries when available.
- Find the person by the Name column, which displays names in last-name-first format.
- Read Judicial Status before assuming bond or release is available.
- Open the Detail link for arrest data and WCCA court-case links.
Fond du Lac County Roster Lookup
Use the roster for current adult county jail custody, not for all people with Fond du Lac County cases. A person may be in court records but already released, transferred to DOC, held by another county, in federal custody, or not yet visible after a recent arrest. When the roster does not resolve the question, call the jail, file a sheriff records request, search WCCA, check DOC, or use federal and immigration locators based on the type of custody.
The official roster screenshot captured for this project shows the current-inmate table and page controls.
The table layout makes the Detail link and Judicial Status column central to a Fond du Lac County jail roster search.
| Field Label | Type | Required | Notes |
|---|---|---|---|
| Entries per page | Dropdown/select | No | Observed options were 10, 25, 50, and 100 entries. |
| Detail | Row link | No | Opens the public inmate detail profile. |
| Name | Table column | Not applicable | Names appear in last-name-first format. |
| Judicial Status | Table column | Not applicable | Observed values include pre-trial, sentenced, probation/parole hold, and out-of-county warrant statuses. |
| Search by name | Text field | Not observed | The captured public page did not expose a text search field. |
Fond du Lac County Released Inmate Records
The current roster is not an archive. For a past booking, incident, accident, dispatch record, or older jail record, the sheriff directs new requests after June 1, 2026 to the Fond du Lac County Sheriff's Office Open Records Portal. The portal provides a tracking or ID number after submission. Mail and in-person records requests remain available through the Sheriff's Office records channel at 180 S. Macy Street, P.O. Box 1273, Fond du Lac, WI 54936-1273, from 8:00 AM to 4:00 PM Monday through Friday, excluding holidays.
Requests should include the incident date, approximate time, case number if known, involved person or investigating deputy, and requester contact information. Court outcomes belong in WCCA, while criminal-history record requests through Wisconsin DOJ WORCS are separate from both WCCA and the jail roster.
Fond du Lac County Inmate Record Fields
A roster detail profile can contain more than one arrest block. The inspected sample showed arrest numbers, agency names, agency case numbers, offense rows, count data, court case numbers, entry codes, disposition codes, disposition dates, and WCCA-linked case numbers. Booking photos, demographic fields, bond fields, and housing-unit fields were not visible in the captured text for that sample, so those should not be promised as guaranteed fields.
The sample inmate detail page captured for this project illustrates how arrest rows connect the jail profile to WCCA court cases.
The detail view is useful because it separates sheriff booking data from later prosecutor and court updates.
| Field | What It Shows |
|---|---|
| Arrest # | Sheriff arrest identifier for the arrest block. |
| Date | Arrest or booking event date and time. |
| Agency | Arresting or responsible law-enforcement agency. |
| Agency Case Number | Law-enforcement report number tied to the arrest. |
| Offense and Counts | Booking offense label and count total. |
| Court Case Number | Circuit court case number, sometimes linked to WCCA. |
| Disposition Code | Status shorthand where present, such as SENT in the sample. |
Fond du Lac Jail vs State Prison
County jail and state prison are often confused. Fond du Lac County Jail is the local adult detention point for pre-trial detainees, short local sentences, probation/parole holds, and out-of-county warrants. Taycheedah Correctional Institution is a state DOC prison for adult female offenders and is searched with the DOC locator. Federal and immigration custody are different still, and no BOP, ICE, or U.S. Marshals detention facility was found inside Fond du Lac County from official sources.
| Question | County Jail | State Prison |
|---|---|---|
| Who runs it? | Fond du Lac County Sheriff's Office | Wisconsin Department of Corrections |
| Who is listed? | Current adult county detainees | Convicted offenders sentenced to DOC incarceration or supervision |
| Where to search? | Fond du Lac current-inmate roster | Wisconsin DOC Offender Locator |
| What is excluded? | Sentenced DOC prisoners, federal inmates, immigration detainees, juveniles | County jail inmates, adjudicated juveniles, and some DOJ persons of interest |
State Federal and VINE Search
The Wisconsin DOC Offender Locator covers convicted offenders sentenced to DOC incarceration, supervision, or both. Wisconsin VINE is a separate custody and case notification portal. Federal sentenced inmates are searched through the BOP inmate locator, which covers federal inmate records from 1982 to present. Immigration detainees are searched through ICE ODLS by A-number or by name, country of birth, and date of birth.
No official Fond du Lac County Sheriff mobile app or app-only roster was located. Readers should use the official web roster, records portal, WCCA, DOC locator, VINE, BOP, and ICE channels rather than searching app stores for a county custody tool that the research did not find.
Fond du Lac County Detention Facilities
The Fond du Lac County inmate population is divided by age, legal status, and sentencing authority. The adult jail is the local lookup point for sheriff custody. Secure detention is a juvenile facility with restricted access rules. Taycheedah is a DOC prison and must be handled through state systems.
- Fond du Lac County Jail - adult pre-trial detainees, sentenced county detainees, probation/parole holds, and out-of-county warrant holds.
- Fond du Lac County Secure Detention Facility - juveniles held in secure detention from Fond du Lac County and other counties.
- Taycheedah Correctional Institution - adult female offenders sentenced to Wisconsin DOC custody.
Fond du Lac County Inmate Population FAQ
How large is the Fond du Lac County inmate population?
The official roster capture showed 228 current adult jail entries in July 2026, while the sheriff history page describes the jail as a 300+ bed complex. The county also has a 27-bed secure juvenile detention facility and Taycheedah Correctional Institution, where DOC reported 1,037 persons in care in May 2026.
How do I search the Fond du Lac County inmate population?
Start with the sheriff's current-inmate roster for adult county jail custody. If the person is sentenced to DOC custody, use the Wisconsin DOC locator. Use WCCA for court charges, VINE for notifications, BOP for sentenced federal inmates, and ICE ODLS for immigration detention.
Are juvenile detention records on the adult roster?
No. The Fond du Lac County Secure Detention Facility is a juvenile facility. Juvenile custody information is handled under different access rules, and the adult jail roster should not be used as a public juvenile profile system.