The number of homeless school children is rising in U.S. schools.

Education Department statistics released Monday say 1.3 million homeless children were enrolled in U.S. schools in the 2012-2013 school year - an 8 percent increase from the previous school year.

A vast majority of the homeless children were living in "doubled-up" quarters, meaning multiple families were living together not by choice. About 70,000 were identified as living in a hotel or motel.