The CPSB is the sixth largest school district in Louisiana and encompasses all of Calcasieu Parish which is located in southwest Louisiana. The entire district is accredited by the Southern Association of Schools and Colleges. The school system extends a total of 1,094.5 square miles from the Texas boarder east to Iowa, Louisiana, north to DeQuincy, Louisiana, and South to the Cameron Parish line.

A community leader in the business world, as well as education, the Calcasieu Parish School System is the largest employer in Calcasieu Parish with 4,950 employees and 32,421 students. The major urban and suburban cities of Calcasieu Parish are Lake Charles and Sulphur, which are centrally located in the parish. There are five additional rural, farming communities situated on the parish peripheries. The population of Calcasieu Parish is approximately 185,000 with nearly 80,000 residents living in the city of Lake Charles. The primary economic base has been petrochemicals and refining, the Port of Lake Charles, casino gambling, and aviation.