Authorities announced the plans on Wednesday for a facility that could house as many as 1,300 detainees.
Immigration officials have been expanding detention space in Southern California to cut down on detainee transfers.
Those transfers have been criticized by immigrant advocates who want to represent the detainees in court.
In recent years, immigration attorneys have seen their clients transferred to detention centers in New Mexico, Texas and Washington state due to a lack of bed space in Los Angeles.
The agreement with the city of Adelanto - which in turn has contracted with The Geo Group, of Boca Raton, Fla., to oversee the facility - brings the number of beds available in the greater Los Angeles region to more than 3,000.
The Associated Press contributed to this report.
