Costa Mesa is a city in Orange County, CA, with a population of approximately 113,400.
The Orange County Sheriff has an arrangement with ICE where some of his deputies are trained to perform immigration checks, as do Los Angeles, San Bernardino and Riverside counties, where deputies have been trained to use federal databases to check a local jail inmate's immigration status.
Costa Mesa had originally planned to train city officers (with much wringing of hands by local "activists") prior to ICE stepping up to put one of their own at the city jail.
The (OC) County's numbers are much higher.
The OC Sheriff - Cross-Designation/Immigration page offers this:
"For the record, from January 19 to July 29, Orange County Sheriff’s Department Jail Deputies interviewed 4,135 foreign nationals booked into Orange County jails, detaining 2,778 individuals for Immigration and Customs Enforcement. Among those detained, 180 were being held for aggravated felonies, 1,762 for felonies, 1,016 for misdemeanors and 174 affiliated with gangs."
Nice. Does ICE actually deport these guys though? I’ve read/heard that they don’t actually do anything with the reports.