Villa Park is a city in northern Orange County, California, United States. It was founded in 1962. At the 2010 census, the city had a population of 5,812, making it the smallest city in Orange County. The city is largely zoned for single-family residences on lots that average about 20,000 square feet, or 1⁄2 acre, in size. Within the city limits there is one small shopping center.