Hilliard is a town in Nassau County, Florida, United States; northwest of Jacksonville. It is part of the Jacksonville, Florida Metropolitan Statistical Area. As of the 2020 census, the population was 2,967, down from 3,086 at the 2010 census. Hilliard was named "2003 Rural Community of the Year" by former Florida governor Jeb Bush, for its collaboration with the YMCA to establish a local chapter, which included a swimming pool and exercise facility.