In 1944, the flight school changed its name to Mira Loma Flight Academy. The airfield inactivated on 1 October 1945 and was declared surplus in 1946. Responsibility for it was given to the War Assets Administration. The land was then bought by Los Angeles County. The airfield was converted to Mira Loma Detention Center. In 2012, Los Angeles County closed the detention center. Los Angeles County is currently collaborating with the City of Lancaster, the faith-based community, and the non-profit community to convert the facility into a winter shelter.