Chiyoda (Japanese: 千代田区, Hepburn: Chiyoda-ku; IPA: [tɕijoda] ), a.k.a. Chiyoda City in English, is a special ward of Tokyo, Japan. Located in the heart of Tokyo's 23 special wards, Chiyoda consists of the Imperial Palace and a surrounding radius of about a kilometer (1000 yards), and is known as the political and financial center of Japan. As of October 2020, the ward has a population of 66,680, and a population density of 5,709 people per km (14,786 per sq. mi.), making it by far the least populated of the special wards. The residential part of Chiyoda is at the heart of Yamanote, Tokyo's traditional upper-class residential area, with Banchō, Kōjimachi, and Kioichō considered the most exclusive neighbourhoods in the entire city. The total area is 11.66 km (4½ sq. mi.), of which the Imperial Palace, Hibiya Park, National Museum of Modern Art, and Yasukuni Shrine take up approximately 2.6 km (1 sq. mi.), or 22%.
Chiyoda is known as the economic center of Japan; the districts of Otemachi, Marunouchi and Yurakucho east of the palace (an area colloquially known as "Daimaruyu") house the headquarters of 19 Fortune 500 companies, is the source of roughly 10% of the combined revenue of all Japanese companies, and produced the equivalent of around a quarter of the country's GDP in 2017. With a day population of around 850,000, its day/night population ratio is by far the highest of all municipalities in Japan. Tokyo Station, Tokyo's main inter-city rail terminal and the busiest train station in Japan in terms of scheduled trains, is also located in Chiyoda.
