South Carolina Population By County in 2021

Updated on June 16, 2025.

Based on the US Census Vintage data estimates, in 2021, the population of South Carolina was 5,194,274. Among all South Carolina counties, Greenville had the highest population (534,675), followed by Richland (417,306), and Charleston (414,605).

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.

Related Topics: South Carolina Census Vintage Data Topic List.

Data Source: US Census Bureau (Vintage).

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South Carolina Population By County in 2021

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County	Population	% of State Population
Abbeville	24263	0.47
Aiken	171272	3.30
Allendale	7714	0.15
Anderson	206949	3.98
Bamberg	13121	0.25
Barnwell	20604	0.40
Beaufort	191946	3.70
Berkeley	236852	4.56
Calhoun	14141	0.27
Charleston	414605	7.98
Cherokee	56110	1.08
Chester	32160	0.62
Chesterfield	43334	0.83
Clarendon	30965	0.60
Colleton	38461	0.74
Darlington	62723	1.21
Dillon	27977	0.54
Dorchester	163484	3.15
Edgefield	26274	0.51
Fairfield	20686	0.40
Florence	136409	2.63
Georgetown	63939	1.23
Greenville	534675	10.29
Greenwood	69139	1.33
Hampton	18259	0.35
Horry	366164	7.05
Jasper	30434	0.59
Kershaw	66215	1.27
Lancaster	100540	1.94
Laurens	67837	1.31
Lee	16278	0.31
Lexington	300644	5.79
McCormick	9768	0.19
Marion	28853	0.56
Marlboro	26106	0.50
Newberry	37976	0.73
Oconee	79331	1.53
Orangeburg	82851	1.60
Pickens	132139	2.54
Richland	417306	8.03
Saluda	18908	0.36
Spartanburg	335452	6.46
Sumter	104879	2.02
Union	27028	0.52
Williamsburg	30432	0.59
York	289071	5.57