Kitaarima is a farming community that grows rice, potatoes, mikan, strawberries, and other crops. It has several distribution facilities to move produce to more populated areas. Kita-Arima-chō is situated in seven valleys that run up the southern reaches of Mount Unzen. Most of Kita-Arima-chō's population is centered in the southern part of the county in the town of Kita-Arima near the Ariake Sea and Minami-Arima town. Kita-Arima town is further split into smaller hamlets; Tanigawa, Sakaueshita, Tabira, Saishoji, Oriki.