Number of homeless students U.S. AY 2017-18, by grade

In the United States, third graders accounted for the highest number of homeless children and youths enrolled in school for the academic year 2017-18, at 125,965 students. The next highest was second graders at 124,117 homeless during the same year. A homeless child or youth is someone who lacks a fixed residence or is forced to share housing due to economic hardship.

在美国，2017-18学年度，就读于学校的无家可归儿童和青少年中，三年级学生的人数最多，达到125,965名。紧随其后的是二年级学生，同年共有124,117名无家可归。所谓无家可归的儿童或青少年，是指那些缺乏固定住所或因经济困难而被迫与他人合住房屋的人。