Charlestown is a city located within Charlestown Township, in Clark County, Indiana, United States. The population was 7,775 at the 2020 census. History Charlestown was established in 1808, named after one of its surveyors, Charles Beggs, upon , of which was designated for a town square. It was established one mile (1.6 km) northeast of Springville, and was responsible for Springville's demise. Milling was important to the town, as the first mill was built in the area, on Fourteen Mile Creek, in 1804. This mill would be abandoned when John Work built a mill by use of a tunnel in 1814. Today, that mill is part of the Tunnel Mill Scout Reservation. From 1811 to 1878 Charlestown was the county seat of Clark County, but as Jeffersonville had surpassed it economically, the county seat reverted to Jeffersonville in 1878. In 1818 the first Grand Lodge of Free & Accepted Masons in Indiana met in Charlestown, due to Jonathan Jennings' influence. In 1940 the population of Charlestown was 900, but it swelled to 13,400 due to the building and operation of the Indiana Army Ammunition Plant (INAAP). This created a housing problem, as chicken, wood, and wash houses had to house all the new residents who flocked to the area for the jobs created by the INAAP. Additional problems caused by the rapid influx of new residents were improper sanitation at restaurants, inefficient sewers, gambling, panhandling, and diseases such as typhoid and malaria. In 2014 the city announced they would be applying for a grant to redevelop Pleasant Ridge Subdivision, an impoverished area within the city. Some residents of the Pleasant Ridge Subdivision formed an association to fight against demolishing their homes via eminent domain. The City Council did not call for a vote on the issue and the grant issue failed. Starting in 2016 the city was accused of using excessive fines against homeowners in the subdivision in order to force them to sell to a private developer. Geography Charlestown is located at (38.451984, -85.667224). According to the 2010 census, Charlestown has a total area of , of which (or 99.66%) is land and (or 0.34%) is water. Demographics 2020 Census As of the census of 2020, there were 7,775 people and 3,193 households residing in the city. The population density was . There were 3,227 housing units at an average density of . The racial makeup of the city