Grant County Jail Overview
Grant County Jail is operated by the Grant County Sheriff's Office in Lancaster. The official sheriff page identifies Sheriff Craig Reukauf and lists the sheriff and jail contact address on Hwy 35/61/81. The facility serves the county jail function for people arrested locally, people held on court orders, sentenced county-jail inmates, probation holds, people waiting to be sentenced, and people held under agreements with other Wisconsin counties. Wisconsin Secure Program Facility in Boscobel is a different system; WSPF is a Wisconsin Department of Corrections prison and should not be treated as a county jail roster result.
The county's accessible sheriff pages did not publish a separate jail handbook, booking desk page, visitor calendar, public inmate roster, or detailed commissary fee schedule. That absence changes the lookup process. Phone confirmation and the Grant County public-record request portal are primary access channels, not last-resort options after a roster search fails. Formal criminal charges, court dates, and case outcomes are handled by the Grant County Clerk of Court and Wisconsin Circuit Court Access rather than by the jail roster.
The official Grant County Sheriff's Office page is the source for the sheriff's name, address, phone, and 24-hour office listing.
This screenshot matters because it ties jail custody questions to the sheriff's official contact point rather than to unrelated Grant County roster sites from other states.
Grant County Jail Capacity and Population
Grant County's official web pages did not show a current rated bed count for the jail. The most useful local population figures come from official Law Enforcement and Emergency Management committee minutes. The January 13, 2025 minutes reported 55 inmates that morning, with 39 male inmates, 16 female inmates, four people on electronic monitoring, 15 sentenced inmates, 14 people waiting to be sentenced, 10 probation holds, and 11 contract inmates. The March 10, 2025 minutes reported 56 inmates, and the April 14, 2025 minutes reported 51 inmates. Those snapshots show a jail population clustered in the low-to-mid 50s during early 2025.
Later official minutes from April and May 2026 state that Grant County Jail was housing people from Scott, Richland, Green, Lafayette, and Crawford counties in addition to Grant County inmates. That detail is important for a Grant County Jail lookup because a person housed in Lancaster may have a case, warrant, or hold connected to another county. A separate correctional population reference lists Grant Co. Jail at 53 local population in older census-style data, but that figure should not be described as a current rated capacity.
| Date | Population | Local Detail |
|---|---|---|
| Jan. 13, 2025 | 55 | 39 male, 16 female, 4 electronic monitoring, 10 probation holds, 11 contract inmates. |
| Mar. 10, 2025 | 56 | 47 male, 9 female, 3 electronic monitoring, 13 probation holds, 7 contract inmates. |
| Apr. 14, 2025 | 51 | 40 male, 11 female, 4 electronic monitoring, 9 probation holds, 4 contract inmates. |
How to Look Up an Inmate at Grant County Jail
No verified official online Grant County, Wisconsin jail roster was located on the county or sheriff web properties. Search results can point to Grant County pages in Washington or Indiana, or to unofficial roster sites that do not match the Wisconsin source set. For the Lancaster jail, use the sheriff's phone line first for current custody, then use the official public-record portal when a written booking record, incident report, or booking photo request is needed.
- Call Grant County Jail or the Sheriff's Office at (608) 723-2157 for current custody status.
- Have the full legal name, date of birth or approximate age, arrest date, arresting agency, and any case or incident number ready.
- If staff cannot confirm a current local hold, ask whether the person may have bonded out, been released, moved to another county, held on a probation matter, or transferred to Wisconsin DOC after sentencing.
- Use Grant County NextRequest for jail records, booking records, incident reports, and mugshot requests not provided by phone.
- Search Wisconsin Circuit Court Access for formal charges, court dates, bond conditions, dispositions, and filed case events.
- Search the Wisconsin DOC Offender Locator only if the person has entered state custody or supervision.
The official NextRequest portal is the county route linked by the sheriff's public-records page.
Use this portal for record copies and written requests; it does not replace the phone call needed for fast current-custody confirmation.
Grant County Jail Address and Contact
Use the sheriff and jail address for custody, booking, jail-record, and facility questions. Court files are handled separately at the courthouse on West Maple Street, so do not send court-copy requests to the jail unless sheriff records are also needed. The official sheriff page lists the office as open 24 hours, but visitors should still call before traveling because jail entry, visiting, records pickup, and release procedures can change with staffing, security, court, or medical needs.
Grant County Jail
8820 Hwy 35/61/81
Lancaster, WI 53813
(608) 723-2157
Sheriff's Office listed as open 24 hours.
Visiting Someone at Grant County Jail
A verified public visiting schedule was not located on the accessible Grant County Sheriff pages. The safest instruction is to call the jail before making travel plans, especially because the jail holds several custody types and may also house contract inmates from other counties. Bring government photo identification, expect security screening, and do not bring weapons, drugs, alcohol, recording equipment, or anything you intend to give directly to an inmate unless staff specifically authorizes it.
The research confirms jail staff monitor visitation and coordinate attorney, probation, and court-service contacts, but it does not provide public days, video-visit vendors, sign-up rules, dress-code language, visitor age rules, or fee tables. Attorneys, probation agents, and official visitors should coordinate through the jail rather than relying on a public visitor schedule.
| Topic | Verified Status | What to Do |
|---|---|---|
| Public visit schedule | Not published in official pages found | Call (608) 723-2157 before traveling. |
| Visitor ID | No local rule text located | Bring government photo ID and confirm any age or approval rules. |
| Video visitation | No vendor verified | Ask jail staff whether remote visits are available. |
| Attorney/probation visits | Scheduling mentioned in jailer duties | Coordinate directly with the jail. |
| Parking and entrance | No official visitor parking detail located | Confirm the entrance and parking process before arrival. |
Mail, Phone, and Money at Grant County Jail
The county sources reviewed did not publish a current jail mail format, phone vendor, texting vendor, commissary provider, deposit vendor, accepted payment methods, or fee table. Jailer duty descriptions confirm that staff handle mail, phone, text, email monitoring, meals, commissary, inmate financial records, and billing, so these processes exist, but public users should not guess at formats or vendors. Call the jail before mailing anything or trying to place funds on an account.
If a written record is needed, NextRequest is the official public-record route for sheriff records. For bond and court payments, verify the status with the jail and then check the case in WCCA or contact the Grant County Clerk of Court. A person can satisfy one cash-bail requirement and still remain in custody because of a probation hold, another county warrant, a DOC order, a federal writ, or a different pending case.
| Service | Provider / Detail |
|---|---|
| Mail Address | No public format verified. Call for the inmate-name and booking-number format before mailing. |
| Phone / Video | No public vendor verified. Ask the jail for current phone, text, email, or video options. |
| Money Deposit | No public vendor or fee table verified. Call for accepted payment methods and restrictions. |
| Records Requests | Use Grant County NextRequest for sheriff records, reports, booking records, and mugshot requests. |
Booking and Intake at Grant County Jail
Grant County has not published a detailed public booking manual, but jailer duties and Wisconsin jail practice support the basic intake path. A person may be brought in by the sheriff, city police, state patrol, probation/parole, or another agency. Staff perform identification, warrant and hold checks, property inventory, search and contraband screening, booking photography, fingerprinting, charge or hold entry, medical or mental-health screening, classification, housing assignment, and court coordination.
Formal criminal court information may not appear immediately after booking. The District Attorney decides what charges to file, and the Clerk of Court maintains the criminal case once filed. Wisconsin Circuit Court Access can show the case number, charges, hearings, bond conditions, dispositions, and financial obligations after court entry. The jail remains the better source for current physical custody, release timing, and whether a local hold, probation hold, contract hold, or other agency action still keeps the person in custody.
About Grant County Jail
Grant County Jail is part of the county's public-safety system, and official committee minutes provide more jail-population detail than the public website does. The minutes separate sentenced inmates, people waiting to be sentenced, probation holds, electronic monitoring, contract inmates, and male/female counts. They also show that inter-county housing was relevant in 2026, with people from Scott, Richland, Green, Lafayette, and Crawford counties housed in Grant County in addition to Grant County inmates.
Wisconsin law defines county jail uses broadly enough to include people charged with crimes, people sentenced to jail, witnesses committed by a court, people awaiting transfer to state institutions, temporary DOC detentions, and other lawful detentions. Wisconsin law also requires the sheriff or jail keeper to maintain basic jail conditions, including cleanliness, food, water, bedding, heat, light, and related care. Those standards provide context for the jail's role, but they do not create a public online roster where the county has not published one.
Note: Confirm custody, visiting rules, mailing instructions, and release status with Grant County Jail before traveling or sending money.