Garnet Valley School District is located in the southeast corner of Pennsylvania in Delaware County. Garnet Valley enrolls more than 5,000 students in grades Kindergarten through 12 in five schools.
The Garnet Valley Joint School System was formally organized on March 30, 1959. From school year '59-'60 to school year '62-'63 Garnet Valley existed as a Junior High School housed in the Old Concord Elementary School building on Bethel Road for Grades 7 through 9. Students were then sent to Media High School for Grades 10, 11, & 12. The last class sent to Media High School was the Class of 1965. The construction of the Garnet Valley High School began in May 1962, and opened on September 4, 1963. The first class to graduate from Garnet Valley High School was the Class of 1966.
In 1990, construction began for Garnet Valley Middle School. In September 1991, Garnet Valley Middle School was opened.
In 2000, the Garnet Valley Middle School was selected as a Blue Ribbon School of Excellence by the United States Department of Education In both 1999 and 2001 Garnet Valley High School received the Blue Ribbon Award of Excellence from the Pennsylvania Department of Education.
Student scores on the Pennsylvania standardized tests (SATs) rank the district in the top 7% of all school districts in the state of Pennsylvania.
As of the 2007–2008 school year, all students attend Concord Elementary School for kindergarten. Those who live in Concord Township attend Concord Elementary (grades K–2), then go to Garnet Valley Elementary School (grades 3–5). Bethel Springs Elementary School (grades 1–5) is for students who live in Bethel Township. All students attend Garnet Valley Middle School (grades 6–8), and complete their education at Garnet Valley High School (grades 9–12).
Garnet Valley continues to expand. In September 1997, Garnet Valley Elementary School opened. In September 2002, Bethel Springs Elementary School opened. In September 2000 and September 2001, due to the exponential student growth throughout the school district, the middle school completed a renovation which included the expansion of the art and technology wing and cafeteria, the construction of a new gymnasium and choral room, the relocation of the front offices, and the construction of 13 general education classrooms and 2 science labs. In November 2005, due to a shortage of classrooms, the middle school opened a new wing that consists of 12 general education classrooms and 2 science labs. In January 2003, due to the same exponential student growth throughout the school district, the high school completed phase 1 of a major renovation which included the expansion of the core facilities, the construction of a performing arts center and art wing, and the construction of a general education wing that was designed to accept a second floor. In September 2006, the high school completed phase 2 which was the construction of the second floor for the new general education wing. Concord Elementary School was rebuilt in a new location and opened in September 2006. In October 2016, the middle school cafeteria was renovated for the second time due to overcrowding in the old cafeteria.