Immigrants accounted for more than 30 percent of the federal prison population and nearly all of them are confirmed or suspected illegal immigrants, the government said in a new report Tuesday.
The government said it had 57,820 migrants in its prisons as of Dec. 31, Homeland Security and the Justice Department said in the joint report.
Nearly 20,000 other immigrants were held in pretrial detention by the U.S. Marshals Service, most of them in contracted facilities, costing the government $134 million for just three months. That works out to nearly $90 a day for each person in those contract facilities.