Hidden Hills, CA
Hidden Hills is an incorporated city, and also a gated development in Los Angeles County, California, United States. The population was 1,856 at the 2010 census, down from 1,875 at the 2000 census. It is located in the westernmost San Fernando Valley. Besides being one of the wealthiest cities in the United States, it also has a large population of Russian Americans making up over 11% of the population.
Hidden Hills is in the southern Simi Hills Transverse range near the Santa Monica Mountains, and is located at 34°10′3″N 118°39′39″W / 34.1675°N 118.66083°W / 34.1675; -118.66083.
The city was designed and developed in the 1950s by A.E. Hanson, a renowned Southern California Landscape Architect and planned community developer. His earlier projects included Rolling Hills and Palos Verdes Estates, and the 1920s Beverly Hills Harold Lloyd Estate 'Greenacres.' It is a gated residential community with a total all land area of 1.7 sq miles (4.4 km2). An elementary school is publicly accessible at one of the three gates to the community.