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is a district in the San Fernando Valley region of the City of Los Angeles, California, north of downtown Los Angeles. Toluca Lake started out as farmland but today is home to affluent residents.
Toluca Lake is situated in the southeastern San Fernando Valley between the city of Burbank, the Los Angeles district of North Hollywood, and the unincorporated county area of Universal City.
The area's historic boundaries are Cahuenga Boulevard, Camarillo Street, Clybourn Avenue, and the Los Angeles River, and it is located between two major film and television production studios, Universal Studios to the south and Warner Bros. to the east. The Santa Monica Mountains surround the area.
A body of water called Toluca Lake is located near the district's southeastern boundaries; water originally came from springs, but currently wells at the lake’s edges maintain the water level. The bottom of the lake is surfaced with four inches (102 mm) of asphalt concrete to halt water seepage. Owned by the surrounding homeowners, the lake has been maintained by the the Toluca Lake Property Owners Association, a non-profit corporation established in 1934. Being completely surrounded by private property, the lake is virtually never seen except by property owners and their visitors.