South Carolina Citizen Population By County in 2018 (ACS-5Yrs)

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2018, the citizen population for South Carolina was 4,814,410 and represented 97.15% of the total South Carolina population.

Among all South Carolina counties, Greenville had the highest citizen population (472.73K), followed by Richland (396.15K), and Charleston (383.13K).

In terms of percentages, Chester had the highest percentage of its population being citizens (99.74%), followed by Lee (99.72%), and Union (99.53%).

The chart and table below shows the citizen population of each county and the percentage of each county's population that were citizens.

You can see similar information for other states and by state for the United States.