Ipbuk-dong is an administrative neighbourhood in Gwonseon-gu, Suwon, Gyeonggi-do, South Korea. Ipbuk-dong (입북동/笠北洞) is divided into two different legal-status neighbourhoods, namely Ipbuk-dong (same name) and Dangsu-dong (당수동/堂樹洞), which are separated by the Hwanggujicheon—a stream which flows south from Wangsong Reservoir on their northern boundary with the city of Uiwang, through Suwon, eventually to Asan Bay. Dangsu-dong has Suwon's sole boundary with Ansan, and meets Hwaseong further south. The neighbourhood is 96% green belt.