Immigration and Customs Enforcement (ICE) is the federal law-enforcement agency with primary responsibility for enforcing immigration laws within the U.S. However, for over a decade, ICE has formed partnerships that also allow local police to enforce immigration law (i.e., identifying and arresting undocumented residents). Prior studies, using survey data with selfreported immigrant and citizenship status, provide mixed evidence on the demographic impact of these controversial partnerships. This study presents new evidence based on the public-school enrollment of Hispanic students. We find that local ICE partnerships reduce the number of Hispanic students by nearly 10 percent within 2 years. We estimate that the local ICE partnerships enacted before 2012 displaced over 300,000 Hispanic students. These effects appear to be concentrated among elementary-school students. We find no corresponding effects on the enrollment of non-Hispanic students. We also find no evidence that ICE partnerships reduced pupil-teacher ratios or the percent of students eligible for the National School Lunch Program (NSLP). [This research was also supported by the Stanford Immigration Policy Lab.]