Chŭngsan County is a kun (county) in South Pyongan Province, North Korea.

Re-education Camp No. 11, a large prison mostly for repatriated refugees, is located in the northwestern part of Chŭngsan County.

The region was originally known as "Sirumoe(a mountain that looks like earthen ware for steaming food)". This korean name was sinicized as jeungsan(甑山) when the subdivision of Jeungsanhyang(甑山鄕) was installed under the Kangso prefecture in 1136(before this the region was considered part of west Gyeonggi).In 1395, Jeungsanhyang became a prefecture in its own right and became Jeungsan prefecture.In 1914, the county became a myeon under Kangso county and some of the areas that were part of the county were merged into Pyongwon County. After being under Kangso County for a while, the Chungsan County was recreated in 1952.

Chŭngsan county is divided into 1 ŭp (town) and 17 ri (villages):

Chŭngsan county is served by the Namdong Branch of the Korean State Railway's P'yŏngnam Line.