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It is located in the province of Western Finland and was part of the Satakuntaregion. The municipality had a population of 6,158 (31 December 2009)[2] and covered an area of 332.06 square kilometres (128.21 sq mi) of which 15.2 km2 (5.9 sq mi) is water.[1] The population density was 19.43 inhabitants per square kilometre (50.3/sq mi).
Noormarkku is the birthplace of the Ahlstrom Corporation. Antti Ahlström invested in the entire development of Noormarkku, setting up one of Finland's first Finnish language schools and building a road network.