School District of Clayton includes all of Clayton, portions of Richmond Heights, a portion of St. Louis City, and a portion of unincorporated St. Louis County, Missouri, US. The district is located immediately to the west of the City of St. Louis. As of 2005 the school district had 2497 students, 219 full-time teachers, and 6 schools. There was an 11:1 student-teacher ratio.
The Clayton High School in Missouri was founded in 1910