The school is located in the Upper Kirby district, serving the Houston neighborhoods of River Oaks and Montrose, the incorporated city of West University Place, a portion of the city of Southside Place, and other Houston subdivisions. Lamar offers neighborhood, Advanced Placement, and IB Diploma (International Baccalaureate) programs. It also hosts a business magnet program offering business management courses that works in conjuncture with the Houston business community to provide internships and university scholarships. Lamar's IB Diploma programs is one of two in HISD and consistently graduates the largest number of IB Diploma diploma candidates in Texas.