South Carolina Population By County in 2018

Based on the US Census Vintage data estimates, in 2018, the population of South Carolina was 5,091,702. Among all South Carolina counties, Greenville[object Promise] had the highest population (515,572), followed by Richland[object Promise] (415,159), and Charleston[object Promise] (406,959). Allendale[object Promise] was the least populated county (8,906).

Hover over or click on the counties in the map below to see the populations. The data can also be found in a table below. You can use the table to sort, filter, and explore the data further.

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