Higashimatsuyama(東松山市,Higashimatsuyama-shi) is a city located in northern Saitama Prefecture, in the central Kantō region of Japan. As of 1 February 2016, the city had an estimated population of 91,520, with a population density of 1,400 persons per km². The total area was 65.33 km (25.22 sq mi)