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