Various agencies are given grants to take care of unaccompanied minors brought to the U.S. illegally.
The groups are contracted through a federal office called the Office of Refugee Resettlement (ORR).
Facilities are spread out across the local region from Orange County to Los Angeles County.
The NBC4 I-Team found 4 locations received a total of nearly $23.5 million dollars in grants in fiscal year 2018.
The agency with the largest amount, $6.4 million dollars, is the David and Margaret Youth and Family Services.
Other awards went to agencies in Fullerton, Los Angeles, and Woodland.
Average Daily Population Map
The I-Team also reviewed data about the average daily population (ADP) for adult detention centers from 2009 to 2018.
It shows a trend of increasing population numbers at several locations in California. See the map above.