Wisconsin: 287(g) agreements, detention facilities and where to request records
Each entry below appears on a list ICE publishes, and each links to that public body's own records request page or, where it has none, the route it posts. Where neither was found, the entry says so and links the page that was checked. A privately run or federal facility links a federal agency's FOIA page and, where one is named, the county that contracts for it. Section 287(g) of the Immigration and Nationality Act authorizes these agreements. Being listed says nothing about how an agreement is carried out. ICE's lists are the source for every entry; they can lag, contain errors, and drop agreements without notice, so confirm with the agency before relying on an entry.
On this page: 287(g) agencies, 22 of 22 request pages checked · Detention facilities, 6 of 6 checked
Police, sheriffs and other agencies with 287(g) agreements
ICE's list of 287(g) participating agencies (ICE's spreadsheet file name dated October 9, 2026; page updated October 13, 2026). ICE uses three models. In ICE's words, Warrant Service Officer “allows designated immigration officers to serve and execute administrative warrants on aliens in their custody”; Task Force is described as “allowing designated immigration officers to enforce limited immigration authority while performing routine police duties or as an active participant in an ICE-led task force”; Jail Enforcement “allows designated immigration officers to identify and process removable aliens who have pending or active criminal charges.” None in Wisconsin: Task Force. Ask for the agency's own records (agreements, approvals, invoices, policies). Records ICE holds are requested from ICE (ICE FOIA page).
| Agency | ICE lists | Request records from | Request page checked |
|---|---|---|---|
| Brown County Sheriff's OfficeBrown County | Warrant Service Officer, signed Oct 16, 2020 · agreement | Brown County Sheriff's records requests pageThe public can request redacted reports online, in person at the Sheriff's Office, 2684 Development Drive, Green Bay, or by phone to the Records Division. The page lists fax and mail for law firms, insurers and agencies seeking unredacted reports. It covers Sheriff's Office reports. | 2026-10-14 |
| Calumet County Sheriff's OfficeCalumet County | Warrant Service Officer, signed Jul 31, 2025 · agreement | Calumet County Sheriff's law enforcement records pageBy phone, fax or email to the Records Division, in person weekdays 8 a.m. to 4:30 p.m., or by mail to Calumet County Sheriff's Office, ATTN: Open Records, 206 Court Street, Chilton. | 2026-10-14 |
| Dodge County Sheriff's OfficeDodge County | Warrant Service Officer, signed Sep 29, 2026 · agreement: ICE lists “link pending” | Dodge County Sheriff's open records pageIn person (a form is offered but not required), by mail with the records request form to the Sheriff's Office, Attn: Open Records, 124 West Street, Juneau, or by the online form, which requires an email address. | 2026-10-14 |
| Dunn County Sheriff's OfficeDunn County | Warrant Service Officer, signed Feb 10, 2026 · agreement | Dunn County Sheriff's police reports pageOnline Reports Request form (it asks for name, email and phone), by phone to the Business Office, 715-232-1564, or by mail to Dunn County Sheriff's Office, ATTN: Records, 615 Stokke Parkway, Menomonie. Crash reports are through LexisNexis. | 2026-10-14 |
| Fond du Lac County Sheriff's OfficeFond du Lac County | Warrant Service Officer, signed Jun 5, 2020 · agreement | Fond du Lac County Sheriff's open records pageOnline through the Sheriff's Office open records portal (in use since June 1, 2026), in person weekdays 8 a.m. to 4 p.m., or by mail to Attention: Records, 180 S. Macy Street, P.O. Box 1273, Fond du Lac. | 2026-10-14 |
| Green Lake County Sheriff's OfficeGreen Lake County | Warrant Service Officer, signed Feb 17, 2026 · agreement | Green Lake County Sheriff's page (Records and Administration)The page's Records and Administration section says to request copies of accident and incident reports by email to the address given in that section; printed copies cost 25 cents a page. | 2026-10-14 |
| Kenosha County Sheriff's OfficeKenosha County | Jail Enforcement, signed Jan 7, 2026 · agreement | No dedicated records request page found Kenosha County Sheriff's Office pageNo records request route was found on the Sheriff's Office page of the county's website. | 2026-10-14 |
| Kewaunee County Sheriff's OfficeKewaunee County | Warrant Service Officer, signed Jun 11, 2025 · agreementJail Enforcement, signed Sep 22, 2025 · agreement | No dedicated records request page found Kewaunee County Sheriff's websiteNo records request route was found on the Sheriff's website home page or its county page. The website says its administrative staff help with documentation requests; the department is at 620 Juneau Street, Kewaunee. | 2026-10-14 |
| Langlade County Sheriff's OfficeLanglade County | Warrant Service Officer, signed Apr 13, 2026 · agreement | Langlade County Sheriff's open records pageOpen records request form linked on the page; requests and fees can be mailed to Langlade County Sheriff's Office, Attn: Records Department, 840 Clermont St., Antigo. | 2026-10-14 |
| Manitowoc County Sheriff's OfficeManitowoc County | Warrant Service Officer, signed Jun 5, 2020 · agreement | Manitowoc County Sheriff's release of information form (PDF)Email the completed form or drop it off at 1025 S. 9th St., Manitowoc. Reports cost $0.25 a page. The form covers incident and accident reports, citations, 911 calls, photos and body or squad video; prepayment is required for requests over $5. | 2026-10-14 |
| Marathon County Sheriff's OfficeMarathon County | Jail Enforcement, signed Nov 4, 2025 · agreement | Marathon County Sheriff's Office pageThe Sheriff's Office page links the county's online public records portal: Marathon County public records portal. | 2026-10-14 |
| Marquette County Sheriff's OfficeMarquette County | Warrant Service Officer, signed May 21, 2020 · agreement | Marquette County Sheriff's pageThe page lists public records among the office's duties and gives an email link for FOIA requests to a staff member. | 2026-10-14 |
| Outagamie County Sheriff's OfficeOutagamie County | Warrant Service Officer, signed May 8, 2025 · agreement | Outagamie County Sheriff's open records pageBy phone to the records unit, (920) 832-5605 option 2, or in person at 3030 E. Goodland Dr., Appleton, weekdays 8 a.m. to 4:30 p.m.; copies can be picked up, faxed, mailed or emailed. | 2026-10-14 |
| Sauk County Sheriff's OfficeSauk County | Warrant Service Officer, signed Dec 18, 2025 · agreementJail Enforcement, signed Feb 10, 2026 · agreement: ICE lists “link pending” | Sauk County Sheriff's open records request formDrop the form off at the Law Enforcement Center, mail it to 1300 Lange Court, Baraboo, or fax it. The Sheriff's page also links the county's online records portal. | 2026-10-14 |
| Sheboygan County Sheriff's OfficeSheboygan County | Warrant Service Officer, signed Feb 27, 2020 · agreement | Sheboygan County Sheriff's open records pageFillable or printable records request form, returned by email to the Sheriff's Department records address listed on the page. | 2026-10-14 |
| Walworth County Sheriff's OfficeWalworth County | Warrant Service Officer, signed Feb 17, 2026 · agreement: ICE lists “link pending” | Walworth County Sheriff's open records pageRequest for Records form (PDF) on the page, returned by email or by mail to Walworth County Sheriff's Office, ATTN: Central Records, 1770 County Road NN, Elkhorn. The form says a name is not required. | 2026-10-14 |
| Washington County Sheriff's OfficeWashington County | Warrant Service Officer, signed Sep 26, 2026 · agreement: ICE lists “link pending” | Washington County Sheriff's open records pageIn person weekdays 8 a.m. to 4:30 p.m., by phone, or by mail to Washington County Sheriff's Office, Attention: Records, PO Box 1986, West Bend. | 2026-10-14 |
| Waukesha County Sheriff's DepartmentWaukesha County | Jail Enforcement, signed Jun 10, 2020 · agreement | Waukesha County Sheriff's Records DivisionSeparate email links for Sheriff records and Jail Division records; also by mail to PO Box 1488, Waukesha, by fax, or in person at 515 W. Moreland Blvd. | 2026-10-14 |
| Waukesha County Sheriff's OfficeWaukesha County | Warrant Service Officer, signed May 13, 2025 · agreement | Waukesha County Sheriff's Records DivisionSeparate email links for Sheriff records and Jail Division records; also by mail to PO Box 1488, Waukesha, by fax, or in person at 515 W. Moreland Blvd. | 2026-10-14 |
| Waushara County Sheriff's OfficeWaushara County | Warrant Service Officer, signed Jun 8, 2020 · agreement | Waushara County Sheriff's records request formOnline form, or a printable PDF version to mail or fax; name, address and phone are required. Records are sent by mail or fax, not email; photocopies cost $1.00 a page. | 2026-10-14 |
| Winnebago County Sheriff's OfficeWinnebago County | Warrant Service Officer, signed Mar 3, 2025 · agreement | Winnebago County Sheriff's Records DivisionOnline through the NextRequest public portal, which the page recommends; the Records Unit is at the Sheriff's Office, 4311 Jackson St, Oshkosh. | 2026-10-14 |
| Wood County Sheriff's OfficeWood County | Warrant Service Officer, signed Mar 17, 2025 · agreement | Wood County Sheriff's records pageBy email, in person weekdays 8 a.m. to 4 p.m., by phone, or by mail to Wood County Sheriff's Office, Attention: Records, 400 Market Street, P.O. Box 8095, Wisconsin Rapids. | 2026-10-14 |
Facilities ICE lists for detention in Wisconsin
ICE's detention facility list (page updated March 23, 2026), matched against ICE's detention statistics (data pulled July 9, 2026). ICE's statistics include only facilities with at least one person in custody when the data were pulled, and leave out hold, hospital, juvenile, MIRP and ORR facilities (ICE's note on the sheet). A facility may have started or stopped holding people for ICE since those dates. ICE's two lists name some facilities differently, so one facility may appear twice, once under each list's name.
| Facility | ICE lists | Request records from | Request page checked |
|---|---|---|---|
| DODGE COUNTY JAILJuneau | ICE's detention statistics list it as USMS IGA (USMS Intergovernmental Agreement). No matching entry on ICE's facility locator (updated March 23, 2026). | Dodge County Sheriff's open records pageIn person (a form is offered but not required), by mail with the records request form to the Sheriff's Office, Attn: Open Records, 124 West Street, Juneau, or by the online form, which requires an email address. | 2026-10-13 |
| Dodge Detention FacilityJuneau | No matching entry in ICE's detention statistics (data pulled July 9, 2026). | Dodge County Sheriff's open records pageIn person (a form is offered but not required), by mail with the records request form to the Sheriff's Office, Attn: Open Records, 124 West Street, Juneau, or by the online form, which requires an email address. | 2026-10-13 |
| DOUGLAS COUNTYSuperior | ICE's detention statistics list it as USMS IGA (USMS Intergovernmental Agreement). No matching entry on ICE's facility locator (updated March 23, 2026). | Douglas County Sheriff's records request pageICE's statistics name only the county. No records request page was found on the county's own site; the Sheriff's Office, which lists a Jail Division, takes requests by phone, email, mail or in person at 1316 N 14th Street, Superior, and not by fax. | 2026-10-13 |
| Douglas County JailSuperior | No matching entry in ICE's detention statistics (data pulled July 9, 2026). | Douglas County Sheriff's records request pageBy phone or email to the Legal Records Custodian, by mail, or in person at the Law Enforcement Center, 1316 N 14th Street, Superior. Fax requests are not accepted. | 2026-10-13 |
| SAUK COUNTY SHERIFFBaraboo | ICE's detention statistics list it as USMS IGA (USMS Intergovernmental Agreement). No matching entry on ICE's facility locator (updated March 23, 2026). | Sauk County Sheriff's open records request formDrop the form off at the Law Enforcement Center, mail it to 1300 Lange Court, Baraboo, or fax it. The Sheriff's page also links the county's online records portal. | 2026-10-13 |
| WAUKESHA COUNTY JAILWaukesha | ICE's detention statistics list it as USMS IGA (USMS Intergovernmental Agreement). No matching entry on ICE's facility locator (updated March 23, 2026). | Waukesha County Sheriff's Records DivisionSeparate email links for Sheriff records and Jail Division records; also by mail to PO Box 1488, Waukesha, by fax, or in person at 515 W. Moreland Blvd. | 2026-10-13 |
The signed agreement and any amendments; county board or council approvals; invoices and payments to and from ICE; written policies on ICE holds and warrants; and any counts the agency itself keeps of ICE holds or warrants served. Ask for records the agency itself made or keeps.
- ICE, 287(g) participating agencies list (participatingAgencies10092026b.xlsx, posted with the page “Updated: 10/13/2026”), ice.gov/identify-and-arrest/287g. Checked October 13, 2026.
- ICE, Detention Facilities (page “Updated: 03/23/2026”), ice.gov/detention-facilities. Checked October 13, 2026.
- ICE, detention statistics, Facilities FY26 sheet (FY26_detentionStats07202026.xlsx, data pulled July 9, 2026), ice.gov/detain/detention-management. Checked October 13, 2026.
- Each public body's own records request page or posted route, or the page checked where none was found, linked above. Checked on the date shown in each row.
- Reporters Committee for Freedom of the Press, Open Government Guide: Wisconsin.
Each row shows when its request page was last checked. We aim to recheck ICE's lists weekly and local pages monthly. Agreements can begin or end between checks. Agencies and facilities no longer on ICE's lists move to a dated “No longer listed” note. ICE's lists can drop or omit entries, so a missing entry does not show that an agreement ended. Spot an error? Corrections.