Hwadae County is a county in southern North Hamgyong province, North Korea, with an area of about 460 km² and a population of approximately 70,000. It adjoins the Sea of Japan (East Sea of Korea) on the east and south. By land, it adjoins Kimchaek and Kilchu to the west, and Myŏngch'ŏn to the north. The county was formed from parts of Kilchu and Myŏngch'ŏn in the 1950s, as part of a general reorganization of local government.