Learn more about the filming locations of The Real Housewives of Orange County, including where the Season 20 cast calls home. Where Is The Real Housewives of Orange County Filmed? When The Real Housewives of Orange County first debuted 20 years ago, it put a major spotlight on Orange County, California. Orange County, California is located in Southern California, just south of Los Angeles County, but north of San Diego County. How the location of Orange County was the inspiration for the Real Housewives franchiseOrange County is more than just a location, it’s a lifestyle.