Welcome to Rockwood! There is an advantage to being a part of the Rockwood School District. With about 22,000 students, Rockwood is the largest school district in St. Louis County, Missouri. The district's 19 elementary schools, six middle schools and four high schools, plus separate campuses for early childhood, gifted and individualized learning, collectively make up one of the highest performing school districts in the country. Visit a Rockwood school and you'll see great things: successful students, caring staff, enthusiastic volunteers and a commitment to a high quality education.