Moroyama (毛呂山町, Moroyama-machi) is a town located in Saitama Prefecture, Japan. As of 1 January 2021, the town had an estimated population of 33,178 in 15,888 households. The area of the town is within the borders of ancient Musashi Province. Moro village was created within Iruma District, Saitama. Moro merged with neighbouring Yamane village to form the town of Moroyama on 1 April 1939. Also, in 1939, the author Saneatsu Mushanokoji founded Atarashiki-mura, an agricultural commune, which he intended to form the nucleus of a utopian settlement. Moroyama annexed neighbouring Kawakado village on 1 April 1955. Road paving and housing developments in the early 1960s brought urbanisation, population growth and change to areas previously devoted to mulberry fields. This new urban environment led to changes in the industrial structure, including decreases in the agricultural population and an increase in the manufacturing and service industries.