Ryonggang CountyRyonggang County is a county in South P'yŏngan province, North Korea. It is administered as a part of Namp'o Special City. It is famous for its local apples.Administrative divisionsRyonggang-gun is divided into one town and 10 villages :TransportationRyonggang County is served by the P'yŏngnam and Ryonggang lines of the Korean State Railway.