Federal Law
When a child is reported as missing to the authorities, federal law requires that the child will be entered into the FBI’s National Crime Information Center. In fact, according to the FBI, in 2019, there were 421,394 entries for missing children. In 2018, the total number of missing children entries was 424,066.
Reports
This number is the number of reports of missing children. Meaning that if a child runs away several times in a year, each time will be entered into the NCIC separately and counted in the yearly total. If an entry is withdrawn or updated, that would affect the total number as well.