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is a census-designated place (CDP) in Scioto County, Ohio, United States. The population was 1,588 at the 2000 census. The village of Lucasville was laid out by Captain John Lucas in June 1819 and recorded August 7, 1819. Captain Lucas built the first tavern in the village and kept it until his death in 1825. His house for a long time was headquarters for the Democratic leaders of Southern Ohio.
Lucasville is the location of the Scioto County Fairgrounds. In addition, the Southern Ohio Correctional Facility, Ohio's only maximum security prison and the location of Ohio's death house where death row inmates are executed, is located just outside Lucasville.
Lucasville is served by the Portsmouth Public Library as well as the Valley Local School District and Northwest Local School District
According to the United States Census Bureau, the CDP has a total area of 2.5 square miles (6.6 km²), of which, 2.5 square miles (6.5 km²) of it is land and 0.04 square miles (0.1 km²) of it (1.57%) is water.