Blackville is a city located in South Carolina. With a 2020 population of 2,147, it is the 116th largest city in South Carolina and the 7337th largest city in the United States. Blackville is currently declining at a rate of -1.60% annually and its population has decreased by -10.76% since the most recent census, which recorded a population of 2,406 in 2010. Blackville reached it's highest population of 2,408 in 2010. Spanning over 9 miles, Blackville has a population density of 240 people per square mile.
The average household income in Blackville is $28,017 with a poverty rate of 48.20%. The median rental costs in recent years comes to $569 per month, and the median house value is $53,700. The median age in Blackville is 35.9 years, 35.4 years for males, and 37.2 years for females. For every 100 females there are 73.1 males.