Goyang is a city in Gyeonggi Province in the north of South Korea. It is part of the Seoul Capital Area, making Goyang one of Seoul's satellite cities. It is one of the largest cities in the Seoul Capital Area, with a population of just over 1 million. Ilsan, a planned city, is located in the Ilsandong-gu and Ilsanseo-gu districts of Goyang. It also includes Deogyang-gu which is closer to Seoul.