Korsvik is an urban area in Kristiansand municipality in Agder county, Norway. The urban area is located on the east side of the Topdalsfjorden, about 9 kilometres (5.6 mi) east of the city center of Kristiansand. It is located in the districts of Søm and Randesund, south of the European route E18 highway and the Varodd Bridge. The 7.22-square-kilometre (1,780-acre) village has a population (2016) of 16,820 which gives the village a population density of 2,330 inhabitants per square kilometre (6,000/sq mi).