Hibiya Park
Chiyoda consists of the Imperial Palace and a surrounding radius of about a kilometer. As of June 2020, the ward has an estimated population of 66,575, and a population density of 5,709 people per km², making it by far the least populated of the special wards. The total area is 11.66 km², of which the Imperial Palace, Hibiya Park, National Museum of Modern Art, and Yasukuni Shrine take up approximately 2.6 km², or 22% of the total area.