age 18 and 13.0% of those age 65 or over. Government The city has a mayor-council form of government. The mayor is elected at-large in a citywide vote. The city council consists of five members: four are elected from single-member districts and one is elected at-large. Industry Mount Vernon is the headquarters of a small oil refinery owned by the CountryMark agricultural cooperative. Originally built in 1940, it processes more than 20,000 barrels of local crude oil per day. A former GE Plastics Plant is located here, now owned by Saudi Arabia Basic Industries Corporation (SABIC). Vectren Energy's A.B. Brown Generating Station is located 8 miles east the city. Mount Vernon is home to two biofuels plants, Abengoa of Indiana and Aventine Renewable Energy. These two facilities helped make Mount Vernon an important energy exporter. The Aventine plant had been developed via partnership with Consolidated Grain and Barge, another company at the port, and was the largest operating ethanol plant east of the Mississippi River. Its nameplate was 110 million gallons of ethanol per year. It was closed in 2012, but it has since resumed operation under Valero Energy ownership. BWX Technologies (BWXT - formerly Babcock & Wilcox) has a large facility to make large pressure vessels and large metal tubes in Mt. Vernon. This facility produced many components for commercial nuclear plants from the 1960s through 1980s. It now makes heavy-pressure vessels for both commercial and non-commercial power plants. This facility has the largest loading and unloading capacity (1000 tons) on an inland waterway within . The Mount Vernon port is the largest port for coal shipments in the U.S. and the 7th-largest inland port. The John T. Myers Locks and Dam, located SW of Mount Vernon, was constructed to improve navigation and flood control on the Ohio River. It is important to shipping for the region's river-based industries. Local media Mount Vernon is left without a newspaper, with The Posey County News out of northern Posey county serving as the county's only newspaper. It is represented by the radio stations WPIW AM 1590 and WMVI FM 106.7. Mount Vernon previously (circa 1867-6/24/2020) had “ The Mount Vernon Democrat “ as the town's main newspaper until economic effects of the COVID-19 pandemic led to the Mount Vernon Democrat stopping its publication with its June 24, 2020, edition. Landmark Community Newspapers acquired the Democrat in 1979. It was established in