※ Source: The number of Water Works Bureau is listed as a list and graphed data of Google Maps and Zenrin independently calculated average value, population ratio, deviation value. Based on the results of the census conducted once every five years at the Statistics Bureau of the Ministry of Internal Affairs and Communications, the population of each region is manually entered on the date of announcement of the total population statistics of Tokyo, and reports data on the list and graphed We will. Although we have entered all inputs so as to input exactly as to data, there are times when there is a mistake of input as the possibility of emergency. If you are asking for the accuracy of the data or have any doubts http://www.stat.go.jp/data/index.htm Please refer to the. For other information related to Administration, please see the Administration related site .