Federal immigration enforcement in Wisconsin: Preparing, responding, watching closely
Milwaukee is taking steps to address ongoing and potential ICE operations in the city. While ICE agents have operated in the area law enforcement leaders say there is no indication yet of an imminent surge similar to operations seen in neighboring states.
Federal immigration enforcement is increasingly affecting daily life in Wisconsin. After large-scale operations in neighboring Minnesota that began in December 2025 and escalated in early 2026, residents and officials are preparing for potential large-scale enforcement scenarios within the state. Immigrant households report heightened anxiety, some businesses have temporarily closed, and law enforcement agencies are navigating federal requests while balancing legal obligations and community trust. Federal detainers, which are requests by U.S. Immigration and Customs Enforcement (ICE) to hold individuals in local custody for immigration purposes, and arrests are disrupting routines and raising questions about safety, trust, and the role of local policing.
National operations spark local vigilance
In Minnesota, federal enforcement intensified sharply. Thousands of officers from ICE, U.S. Customs and Border Protection, U.S. Border Patrol, and other Department of Homeland Security components were deployed to arrest individuals suspected of violating federal immigration laws.
The operations drew intense scrutiny after multiple use-of-force incidents. Two U.S. citizens, Renée Good, 37, and Alex Pretti, 37, were fatally shot during interactions with federal immigration agents in Minneapolis in January 2026. Both deaths were classified as homicides by the Hennepin County Medical Examiner, and criminal liability has not yet been determined. The incidents fueled protests, legal scrutiny, and public demands for transparency across the Upper Midwest.
These developments heightened attention on federal enforcement practices in neighboring states, including Wisconsin.
ICE is also undergoing a historic expansion of its ranks. A former ICE instructor testified before Congress in February that the pace of hiring coincided with cutbacks in key training, including instruction on the Constitution, use-of-force protocols, and legal limits on authority. The whistleblower said the agency condensed its basic training program and alleged some recruits were not adequately prepared to carry out enforcement actions lawfully. The Department of Homeland Security has denied those claims.
Federal enforcement reaches Wisconsin
On Feb. 17, ICE agents conducted a targeted enforcement action near a construction site in Altoona, near Eau Claire. ICE said it sought to arrest a suspect accused of assaulting a law enforcement officer. When the operation began, four individuals fled; one was taken into custody immediately and three others entered a nearby residence and barricaded themselves.
Local sheriff’s deputies responded to a criminal trespass complaint from the homeowner and, after attempts to gain voluntary compliance failed, used pepper ball projectiles to coax the individuals out. All four were turned over to ICE agents. None were charged locally, and they were not held in the Eau Claire County Jail; advocates report that at least one person was taken toward federal processing facilities in the Twin Cities. It is not yet clear whether any have since been formally charged with federal crimes, transferred to long-term detention, or deported, as ICE does not routinely disclose case outcomes in such operations.
At a protest outside the Altoona Police Department, advocates called for the release of records and body-camera footage, highlighting community concerns about the role of local law enforcement during federal operations.
St. Croix County: Fear and economic impact
In St. Croix County, including Hudson and Baldwin, ICE actions have unsettled immigrant communities. Agents arrested individuals at the county courthouse, a restaurant, and small manufacturing workplaces. Some businesses were temporarily closed, and households limited their outings. Local networks coordinated support using encrypted communication tools.
Faith leaders and organizers report divergent views on law enforcement cooperation with federal authorities. Some argue participation erodes trust, while others emphasize legal compliance as necessary to maintain public safety.
Local law enforcement: Navigating complex roles
The Baldwin Police Department says it does not participate in ICE operations but acknowledged occasional encounters with federal agents during routine patrols. Officials emphasized that contacting police for help should not expose residents to immigration enforcement.
The St. Croix County Sheriff’s Office does not participate in the federal 287(g) program, which allows local officers to perform certain immigration enforcement functions under federal supervision. The office does, however, notify ICE about individuals in local custody for unrelated alleged crimes. Advocates say this practice blurs lines between criminal justice and civil immigration enforcement.
Civil rights and community response
At a Jan. 29 event in Madison, Voces de la Frontera Executive Director Christine Neumann-Ortiz raised concerns about immigration enforcement and civil rights protections.
“It’s important for people to know their rights, including U.S. citizens, because we’ve been seeing, obviously, the profiling and violence being directed against U.S. citizens as well,” Neumann-Ortiz said, according to WKOW 27 News.
She appeared alongside U.S. Rep. Mark Pocan, D-Madison, at a forum focused on informing residents about their legal rights if approached by federal immigration officers.
Across Wisconsin, public protests and demonstrations have continued in Madison and Milwaukee in response to federal enforcement actions and recent fatalities in Minneapolis.
Milwaukee prepares for broad ICE enforcement scenarios
Milwaukee city officials and community members are taking steps to address ongoing and potential ICE operations in the city. While ICE agents have operated in the area, including targeted arrests at the county courthouse and other locations, law enforcement leaders say there is no indication yet of an imminent surge similar to operations seen in neighboring states. Hundreds attended a February town hall hosted by Alderman Alex Brower, who said residents are “ready to be engaged” and want local officials to pursue options that protect community safety and civil rights.
Officials announced a package of proposed local ordinances, referred to by organizers as the “ICE Out Milwaukee” initiative. The ordinances would impose conditions on federal agents interacting with the public, such as requiring agents to be unmasked and prohibiting raids on certain county property. Alderman JoCasta Zamarripa said the effort is intended to reduce fear, tension, and confusion, while Alderman Marina Dimitrijevic emphasized that setting high standards reflects the city’s commitment to diversity and inclusion.
A bilingual ICE-awareness community discussion on Milwaukee’s South Side was planned to provide residents information about their legal rights and preparedness. County supervisors also issued statements condemning recent enforcement violence and urged peaceful, informed civic engagement. They called for accountability and transparency from federal authorities.
Milwaukee Police Department policy states that proactive immigration enforcement by local police is not part of its mission and could hinder community trust. The Milwaukee County Sheriff’s Office similarly does not hold people in custody for ICE without local criminal charges.
Wisconsin’s ICE footprint and detention landscape
Dodge County Jail in Juneau is among the state’s largest long-term facilities contracting with ICE, housing hundreds of detainees alongside local inmates. Plans for a Milwaukee processing center have drawn criticism from advocacy groups concerned about expanding detention infrastructure. Civil rights litigation challenging local practices of honoring ICE detainer requests without judicial warrants is expected to be resolved later in 2026.
Nineteen Wisconsin law enforcement agencies participate in federal 287(g) programs under multiple models. Outagamie County provides a clear example: deputies may serve ICE detainers only within the jail. They do not patrol, question, or arrest noncitizens in the community. Early 2026 records show 11 noncitizens in custody, three of whom have ICE detainers for serious felony offenses. Officials say this approach balances public safety with legal limits.
State, tribal, and local preparations
Gov. Tony Evers and state officials have coordinated with nonprofits, tribal nations, and local governments to prepare for potential enforcement actions, particularly in regions with large immigrant workforces in dairy, poultry, and manufacturing.
Tribal leaders raised concerns after reports of Native Americans questioned or detained despite valid tribal identification. Wisconsin officials reaffirmed that tribal citizens are U.S. nationals entitled to recognition.
Lt. Gov. Sara Rodriguez has proposed measures to limit ICE access to schools, hospitals, courthouses, and houses of worship without judicial warrants, though formal legislation is pending.
Public forums, town halls, and legal rights workshops continue in Madison, Milwaukee, and Eau Claire.
Air Wisconsin and federal transport networks
Air Wisconsin, headquartered in Appleton, historically operated as a regional partner for major airlines such as United Express and American Eagle. After ending its commercial partnership with American Airlines in April 2025, the airline pivoted toward contract, government, and charter operations.
In January, the airline’s parent, Harbor Diversified Inc., sold operations and 13 jets to CSI Aviation, a federal contractor with experience in detainee transport. Soon after, Air Wisconsin’s network shifted away from typical Midwestern passenger service toward frequent charter flights connecting Wisconsin hubs to ICE detention facilities in Texas, Louisiana, and other states. Flight data indicate at least 125 trips in January, more than double December activity.
While the flight data track patterns consistent with federal enforcement transport, they do not independently confirm whether detainees were on specific flights. Milwaukee’s Mitchell International Airport remains a primary hub, and many Air Wisconsin pilots, flight attendants, and ground crews remain Wisconsin-based.
Looking ahead
Expanding 287(g) agreements, detention infrastructure growth, increased federal hiring, and expanded transport networks reflect broader national shifts.
State and local officials emphasize lawful cooperation within constitutional limits. Advocacy groups warn that even limited federal integration can erode trust and discourage public safety reporting.
Communities continue balancing preparedness, legal education, and local support amid unprecedented federal immigration enforcement activity.
Federal immigration enforcement in Wisconsin: Preparing, responding, watching closely © 2026 by Jean Kiernan Detjen is licensed under CC BY-NC-ND 4.0
