To the west and southwest, Kyŏngsŏng is flanked by mountains, while to the east it borders Kyŏngsŏng Bay in the Sea of Japan(East Sea of Korea). In the coastal area a number of small plains are found, including Kyŏngsŏng Plain. Numerous small streams flow into the Sea of Japan, including the Kwangmoch'ŏn, Segolch'ŏn, Pokkokch'ŏn, and Och'onch'ŏn.
There are also numerous hot springs in the area. Eighty percent of the county is composed of mountain forests, of which 58.9% is evergreen and 39.9% is deciduous.
Due to its location on the Sea of Japan, Kyŏngsŏng's climate is generally mild, but the region is prone to fog. The annual average temperature is 6.6 °C (43.9 °F), −8.2 °C (17.2 °F) in January and 21.1 °C (70.0 °F) in August. The average annual rainfall is 648 mm (25.5 in) along the coast, but 800 mm (31 in) in the west.
Administrative divisions
Kyŏngsŏng County is divided into 1 ŭp (town), 5 rodongjagu (workers' districts) and 14 ri (villages):
Kyŏngsŏng-ŭp
Haonp'o-rodongjagu
Pakchung-rodongjagu
Ryongch'ŏl-lodongjagu
Saenggiryŏng-rodongjagu
Sŭng'am-rodongjagu
Changp'yŏng-ri
Chungp'yŏng-ri
Ha'myŏl-li
Hwaha-ri
Ilhyang-ri
Kwanmo-ri
Namsŏng-ri
Ondaejil-li
Osang-ri
Ryonghyŏl-li
Ryongsal-li
Sang'onp'o-ri
Taehyang-ri
Tokyŏl-li
Economy
Agriculture and fishery
Rice farming is carried out in the eastern region of Kyŏngsŏng. In the orchards, pears are the predominant crop. Small-scale fishing is also carried out.
Manufacturing
The area is known in North Korea as a center of ceramics manufacture.