sentences:  After the late 19th century lynchings in the county, and the state's disenfranchisement of blacks at the end of the century, many African Americans left in the Great Migration, as may be seen in population decreases at the beginning of the 20th century.As of the census of 2010, there were 63,505 people and 24,877 households residing in the county.The population density was 93.1 people per square mile (36 per km2).