Kusŏng is a coterminous city in central North Pyongan province, North Korea. It borders Taegwan to the north, Taechon to the east, Kwaksan and Chongju to the south, and Chonma to the north. The highest point is Chongryongsan (청룡산, 920 m). The year-round average temperature is 8.2 °C, with a January average of -9.6 °C and an August average of 23.3 °C. 1300 millimeters of rain fall in a typical year.