Ranking of South Carolina Counties By Population with Unclassified Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 1.21M people in South Carolina with Unclassified ancestry. Among all South Carolina counties, Greenville County had the highest population with Unclassified ancestry (122.79K), followed by Richland County (103.92K), and Spartanburg County (86.68K).

The chart and table below shows the top 10 counties with high number of people with Unclassified ancestry.

You can see similar information for other states and for other ancestry groups in South Carolina.

Data Source: US Census Bureau.
Ranking of South Carolina Counties By Population with Unclassified Ancestry in 2021
Greenville County
Richland County
Spartanburg County
Lexington County
Charleston County
Berkeley County
Horry County
Anderson County
York County
Beaufort County
Ranking of South Carolina Counties By Population with Unclassified Ancestry in 2021
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Rank County Population
1 Greenville County 122788
2 Richland County 103923
3 Spartanburg County 86675
4 Lexington County 76273
5 Charleston County 66092
6 Berkeley County 64808
7 Horry County 62429
8 Anderson County 61522
9 York County 51415
10 Beaufort County 44218
11 Pickens County 40200
12 Aiken County 35245
13 Dorchester County 34698
14 Florence County 30620
15 Greenwood County 28879
16 Lancaster County 24190
17 Oconee County 21901
18 Sumter County 21202
19 Laurens County 20206
20 Chesterfield County 15547
21 Darlington County 15140
22 Kershaw County 15127
23 Cherokee County 14053
24 Orangeburg County 12841
25 Abbeville County 11296
26 Union County 10177
27 Georgetown County 10014
28 Colleton County 9396
29 Newberry County 9363
30 Jasper County 9233
31 Clarendon County 7308
32 Williamsburg County 7090
33 Edgefield County 6768
34 Chester County 6392
35 Marlboro County 6235
36 Barnwell County 5881
37 Saluda County 5431
38 Marion County 5214
39 Hampton County 5077
40 Dillon County 4793
41 Fairfield County 4043
42 McCormick County 3863
43 Calhoun County 3520
44 Bamberg County 3194
45 Lee County 2835
46 Allendale County 1006