The community of Newbury Park, California is located in the western portion of the city of Thousand Oaks and Casa Conejo, an unincorporated area of southeastern Ventura County's Conejo Valley, which is also in the northwestern Greater Los Angeles Area. Newbury Park abuts the Santa Monica Mountains National Recreation Area, with main entrances at the northern edge of the park at Rancho Sierra Vista/Satwiwa.
The Conejo Valley is one of the most affluent areas in the country. It was ranked as one of the top 100 places to live in the country by Money Magazine. Also, it has the 11th highest per capita income and the 4th highest median household income in the nation (against all other cities with a population of 50,000 or more).
The community is served by the Thousand Oaks Library System with two libraries, the Grant R. Brimhall Library, the largest in the region, and the Newbury Park Branch Library. The ZIP Code is 91320, and the community is inside area code 805.