Buena Park is a city in northern Orange County, California, United States. As of the 2020 census its population was 84,034. It is the location of several tourist attractions, including Knott's Berry Farm. It is about 12 miles (20 km) northwest of downtown Santa Ana, the county seat, and is within the Los Angeles metropolitan area.

Orange County is a county located in the Los Angeles metropolitan area in Southern California, United States. As of the 2020 census, the population was 3,186,989, making it the third-most-populous county in California, the sixth-most-populous in the United States, and more populous than 19 American states and Washington, D.C. Although largely suburban, it is the second-most-densely-populated county in the state behind San Francisco County. The county's three most-populous cities are Anaheim, Santa Ana, and Irvine, each of which has a population exceeding 300,000. Santa Ana is also the county seat. Six cities in Orange County are on the Pacific coast: Seal Beach, Huntington Beach, Newport Beach, Laguna Beach, Dana Point, and San Clemente.