Adelanto Detention Facility is a privately operated immigration detention center in Adelanto, San Bernardino County, California. Owned and operated by the GEO Group, it consists of two separate facilities: East, which was an existing prison purchased in June 2010 from the City of Adelanto with a capacity of about 600 inmates, and the newly built West expansion completed in August 2012 with another 700 beds. After an additional expansion in 2015, the facility's capacity houses up to 1,940 immigrant detainees of all classification levels, with the average stay of 30 days.