The Grant County jail roster is a public resource that lists individuals currently held in the Grant County Jail in Wisconsin. GrantCourt.us can help you find publicly available information about current and recent inmates, including booking details and charges. You can also access jail roster information through the Grant County Sheriff's Office website, by calling the jail directly, or by visiting in person. The Grant County Sheriff's Office maintains the roster as a public transparency tool, and it reflects individuals currently in custody at the facility. The roster is updated as bookings and releases are processed.
Search Current Inmates in Grant Jail
There are several ways to look up someone currently held in the Grant County Jail.
Online Search
- Visit GrantCourt.us to search publicly available court and inmate record information for Grant County.
- You can also check the Grant County Sheriff's Office webpage for any published roster or inmate listing. Note that the Sheriff's Office website is currently under construction, so online roster availability may be limited.
- For related court case information, use the Wisconsin Court System case search to look up criminal filings tied to a specific individual.
By Phone
Call the Grant County Sheriff's Office at (608) 723-2157. Staff can confirm whether a specific person is currently in custody. Have the individual's full legal name ready when you call.
In Person
You may visit the Grant County Jail in Lancaster to inquire about a current inmate.
To begin any search, you will generally need:
- The individual's full legal name (first and last name as it appears on official records)
- A booking number, if known
Juvenile offenders are excluded from the public roster under Wisconsin law and will not appear in any public search results.
Find Grant Jail Booking Records Online
A booking record is created each time someone is processed into the Grant County Jail. During booking, jail staff collect personal information and document the circumstances of the arrest. A typical booking record includes:
- Booking number (a unique identifier assigned at intake)
- Date and time of booking
- Charges at the time of booking
- Arresting agency (Grant County Sheriff's Office, local police, Wisconsin State Patrol, etc.)
- Basic identifying information such as name, date of birth, and physical descriptors
Because the Grant County Sheriff's Office website is currently under construction, online access to a browsable jail roster may be limited at any given time. If an online roster is not available on the Sheriff's site, you have several options:
- Search GrantCourt.us for publicly available booking and court record data.
- Call the jail at (608) 723-2157 to ask about a specific booking.
- Submit a formal public records request through the Grant County government website, which provides a portal for open records requests. Under Wisconsin's Public Records Law, jail booking records are generally considered public unless a specific statutory exemption applies.
If the person has been transferred to state custody, you can search the Wisconsin Department of Corrections offender locator instead.
Search the Grant Jail Roster by Last Name or Booking Number
When a jail roster is available online for Grant County, there are two standard ways to search it:
Search by Last Name
- Enter the individual's last name in the search field, or browse the roster alphabetically.
- If a first name field is available, adding it will help narrow results — especially for common surnames.
- If the roster is displayed as a static list without a search box, use your browser's built-in find function (Ctrl+F on Windows, Cmd+F on Mac) to locate a name on the page.
Search by Booking Number
If you have a booking number — often provided by the jail at the time of arrest or available on court documents — enter it directly. This is the fastest way to pull up a specific record without ambiguity.
Tips for Better Results
- Use the individual's full legal name, not a nickname or alias.
- Double-check spelling. A single incorrect letter can cause a search to return no results.
- If the roster supports partial name searches, try entering just the first few letters of the last name.
- Hyphenated or multi-part last names may be entered differently depending on the system — try variations if your first attempt returns nothing.
If No Results Appear
A search returning no results does not necessarily mean the person was never booked. It may mean:
- The person has already been released and removed from the active roster.
- The booking has not yet been entered into the system.
- The name was entered differently at booking (legal name vs. common name).
- The person is held in a different facility or jurisdiction.
In any of these cases, call the Grant County Jail at (608) 723-2157 for direct confirmation. For court-related records, the Grant County Clerk of Court at (608) 723-2752 can help locate criminal case filings.
Jail Roster Updates and Search Limitations in Grant
The Grant County Jail roster is updated as bookings and releases occur, but there is typically some delay between when an event happens and when it appears online. Processing time can vary depending on staffing, the volume of bookings, and whether the arrest occurs during off-hours or weekends.
Key Limitations to Keep in Mind
- Delay after booking: A newly arrested individual may not appear on the roster for several hours after being brought to the jail.
- Removal after release: Once someone is released — whether on bond, after serving a sentence, or by court order — their record is typically removed from the active roster. The roster is not an archive of past bookings.
- Data entry lags: Charge updates, court-ordered holds, or transfers between facilities may not be reflected immediately.
- Current custody only: The roster shows who is in the jail right now. It does not function as a historical database. For past booking history, you would need to submit a records request to the Sheriff's Office or search through the Wisconsin Online Record Check System (WORCS) for criminal background information.
If you need information about someone who may have been booked and released before you had a chance to check, contact the jail by phone or submit a written public records request through the county's open records portal. Wisconsin's public records law broadly supports access to government records, though certain information — such as juvenile records, confidential informant details, or records related to ongoing investigations — may be withheld.