| Yŏnsan County | |
| Native Name Lang: | ko |
| Settlement Type: | County |
| Translit Lang1: | Korean |
| Translit Lang1 Type1: | Hanja |
| Translit Lang1 Info1: | 延山郡 |
| Translit Lang1 Info2: | Yŏnsan-gun |
| Translit Lang1 Info3: | Yeonsan-gun |
| Subdivision Type: | Country |
| Subdivision Name: | North Korea |
| Subdivision Type1: | Province |
| Subdivision Name1: | North Hwanghae Province |
| Area Total Km2: | 547.5 |
| Population As Of: | 2008[1] |
| Population Total: | 66,568 |
| Population Density Km2: | auto |
| Parts Type: | Administrative divisions |
Yŏnsan County is a county in North Hwanghae province, North Korea.
Yŏnsan county is divided into 1 ŭp (town), 1 rodongjagu (workers' district) and 14 ri (villages):
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Yonsan has a hydropower station with two generator units. The first unit commenced operation on 9 September 2008.[2]
Yonsan County has a trolleybus line in Holdong-rodongjagu; it is observed to run west to a tunnel entrance from next to a building in Holdong-rodongjagu. The state of operation is unknown and no trolleybuses can be observed from satellite imagery.[3]
The tomb complex of Kongp'o-ri[4]