 In the United States, as of January 2014, 23 states, Washington, D.C., American Samoa, and Puerto Rico require students to attend school until they are 18 or until they graduate high school.In two of these states, the requirement went into effect in July 2017.There are 11 states that require school attendance until age 17, while 16 states and the Virgin Islands only require schooling until age 16.