Sakado (坂戸市 Sakado-shi?) is a city located in Saitama Prefecture, Japan. Sakado was formerly a town who elevated to city status on September 1, 1976. As of July 1, 2009, the city has an estimated population of 100,942, with 41,669 households and a population density of 2,464 persons per km². The total area is 40.97 km².