Hilliard is a city in Franklin County, Ohio, United States. The population was 37,114 at the 2020 census. It is a suburb of Columbus and part of Norwich Township. Hilliard is home to the Early Television Museum, the second largest First Responders Park in the United States, and Heritage Rail Trail. Hilliard also has the only flag pole from the World Trade Center that is not in a museum. The flag pole is located in front of the fire department on Northwest Parkway. The Hilliard Historical Society maintains a historical village near the Franklin County Fairgrounds.

Franklin County is a county in the U.S. state of Ohio. As of the 2020 census, the population was 1,323,807, making it the most populous county in Ohio. Most of its land area is taken up by its county seat, Columbus, the state capital and most populous city in Ohio. The county was established on April 30, 1803, less than two months after Ohio became a state, and was named after Benjamin Franklin. Originally, Franklin County extended north to Lake Erie before it was subdivided into smaller counties. Franklin County is the central county of the Columbus, Ohio Metropolitan Statistical Area.