Arai (新井) is a district of Nakano, Tokyo, Japan. As of October 2020, the population of this district is 18,431. The postal code for Arai is 165-0026. (en)
Arai (新井) is a district of Nakano, Tokyo, Japan. As of October 2020, the population of this district is 18,431. The postal code for Arai is 165-0026. (en)