New York Focus reviewed ICE booking data obtained by the Deportation Data Project through Freedom of Information Act requests. The dataset shows ICE detentions through late July. New York Focus also reviewed data published by the Vera Institute of Justice showing the daily population of ICE detainees at each facility across the country, including county jails, from October 1, 2008, through June 10, 2025.
To estimate how much cash holding ICE detainees brought into county jails, New York Focus analyzed data on the number of ICE detainees and their average length of stay. We also located the per diem rate ICE pays each county jail. We obtained invoices Allegany and Clinton counties sent to ICE for housing the agency’s detainees, showing the revenue they receive through this arrangement. For the other counties, we multiplied the number of ICE detainees at each jail by their average length of stay to estimate the number of times the county charged ICE the per diem rate.