Kuusankoski is a neighborhood of city of Kouvola, former industrial town and municipality of Finland, located in the region of Kymenlaakso in the province of Southern Finland. The population of Kuusankoski was 20,392 (2003) and the total area was 129.5 km² of which 114 km² was land and 14.56 km² water. It is located some 130 kilometres (80 mi) northeast of the Finnish capital Helsinki. Kuusankoski is primarily known for paper manufacturing and three large factory complexes.