Westchester is located in the eastern part of the Del Rey Hills a.k.a. the Westchester Bluffs. The Westchester community is separated from the Pacific Ocean by Playa del Rey on the west. Its northern border is defined by and includes the area now known as Playa Vista, as well as Culver City, and the unincorporated area of Ladera Heights.
Westchester is served by six zoned public elementary schools, one middle school, and one high school operated by the Los Angeles Unified School District. The area is within Board District 4.