18 living with them, 56.3% were married couples living together, 7.9% had a female householder with no husband present, and 31.1% were non-families. 27.8% of all households were made up of individuals, and 14.6% had someone living alone who was 65 years of age or older. The average household size was 2.40 and the average family size was 2.88. In the town, the population was spread out, with 22.9% under the age of 18, 10.5% from 18 to 24, 31.1% from 25 to 44, 24.0% from 45 to 64, and 11.6% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 100.6 males. For every 100 females age 18 and over, there were 104.4 males. The median income for a household in the town was $26,750, and the median income for a family was $31,979. Males had a median income of $26,979 versus $17,917 for females. The per capita income for the town was $13,541. About 15.6% of families and 20.5% of the population were below the poverty line, including 38.5% of those under age 18 and 8.9% of those age 65 or over. Power generation The Edwardsport Power Station located to the south of the town provides energy to the region. The plant has two units totalling 160 megawatt capacity. A report by the WWF in 2005 ranked it as the second most polluting power station in the industrialized world, in terms of the level of carbon dioxide produced per unit of electricity generated. A third IGCC unit, of 600 megawatts, is under construction. When it opens in 2011, units one and two are to be decommissioned. See also https://web.archive.org/web/20130508125612/http://www.myedwardsport.com/ List of least carbon efficient power stations References Communities of Southwestern Indiana Towns in Knox County, Indiana Towns in Indiana 1839 establishments in Indiana Populated places established in 1839