The South Carolina population is continuing to increase with the influx of people into the state. See population estimates and projections in the chart below. 2019 population estimates from the US Census Bureau show a 11 percent population increase compared to the 2010 Census. South Carolina's population is expected to grow 35 percent by 2035 compared to the 2010 Census. Population projections through 2035 are based on data from the SC Revenue and Fiscal Affairs Office.