Nyköping is a municipality in central Sweden, in the county of Södermanland. The municipality covers an area of 1421.1 km². Of the total population of 49063, 24119 are male, and 24944 are female. The population density of the community is 35 inhabitants per km².
... town the population is spread out with 28.2% under the age of 18, 7.5% from 18 to 24, 33.5% from 25 to 44, 23.9% from 45 to 64, and 6.9% who are 65 years of age or older. ...