Gunpo is divided into nine legal dongs (neighborhoods). Four of those dongs—Sanbon-dong, Geumjeong-dong, Dang-dong, and Dangjeong-dong—are heavily urbanized residential, commercial, and industrial areas. Located in the northern end of Gunpo, they are serviced by Seoul Subway Lines 1 and 4. In the south of the city, Bugok-dong, Daeya-dong, and Domagyo-dong are largely rural, although Bugok-dong has seen recent urban development and Domagyo-dong has been earmarked for a development project of its own. Daeya-dong also contains a small urban area, which is serviced by Daeyami Station. On Gunpo's west side, Dundae-dong and Sokdal-dong contain large parts of the Surisan mountain and are mostly mountainous, with farmland comprising the majority of their valley areas. Surisan also extends into western Sanbon-dong.