Rockville is a city located in South Carolina. With a 2020 population of 140, it is the 252nd largest city in South Carolina and the 17631st largest city in the United States. Rockville is currently growing at a rate of 0.72% annually and its population has increased by 4.48% since the most recent census, which recorded a population of 134 in 2010. Spanning over 1 miles, Rockville has a population density of 330 people per square mile.
The average household income in Rockville is $113,626 with a poverty rate of 2.50%. The median rental costs in recent years comes to $1,375 per month, and the median house value is $455,600. The median age in Rockville is 65.5 years, 66.8 years for males, and 64.5 years for females. For every 100 females there are 155.3 males.