Ranking of South Carolina Counties By Percentage of White Alone Population Aged 25 years and above with an Educational attainment of Less than High School Diploma in 2021 (ACS-5Yrs)

Updated on September 5, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, the percentage of the South Carolina White Alone population (aged 25 years and above) who had an educational attainment of Less than High School Diploma was 8.65%. Among all South Carolina counties, Dillon County had the highest percentage of its White Alone population (aged 25 years and above) with an educational attainment of Less than High School Diploma (22.71%), followed by Marlboro County (20.68%), and Marion County (19.87%).

The chart below shows the top 10 South Carolina counties, and the table below shows the ranking of all South Carolina counties.

You can see similar information for other educational attainments, and for other races and ethnicities.

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

Ranking of South Carolina Counties By Percentage of White Alone Population (Aged 25yrs+) with an Educational Attainment of Less than High School Diploma in 2021
Dillon County
Marlboro County
Marion County
Chesterfield County
Hampton County
Cherokee County
Laurens County
Union County
Abbeville County
Chester County
Ranking of South Carolina Counties By Percentage of White Alone Population (Aged 25yrs+) with an Educational Attainment of Less than High School Diploma in 2021
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Rank County Percentage of Population (Aged 25yrs+) (%)
1 Dillon County 22.71
2 Marlboro County 20.68
3 Marion County 19.87
4 Chesterfield County 18.24
5 Hampton County 17.16
6 Cherokee County 16.40
7 Laurens County 15.57
8 Union County 14.79
9 Abbeville County 14.12
10 Chester County 13.92
11 Barnwell County 13.34
12 Williamsburg County 13.26
13 Anderson County 12.90
14 Pickens County 12.83
15 Oconee County 12.82
16 Orangeburg County 12.64
17 Saluda County 12.51
18 Clarendon County 12.45
19 Colleton County 12.13
20 Edgefield County 11.74
21 Bamberg County 11.69
22 Allendale County 11.68
23 McCormick County 11.19
24 Darlington County 10.68
25 Greenwood County 10.61
26 Lancaster County 10.23
26 Spartanburg County 10.23
27 Fairfield County 10.10
28 Florence County 10.00
29 Jasper County 9.18
30 Kershaw County 8.90
31 Lee County 8.59
32 Sumter County 8.52
33 Aiken County 8.50
34 Lexington County 8.42
35 Berkeley County 8.19
36 Greenville County 7.73
37 Newberry County 7.68
38 Georgetown County 7.50
39 Horry County 7.37
40 Calhoun County 7.15
41 York County 6.91
42 Dorchester County 6.34
43 Richland County 4.42
44 Beaufort County 3.86
45 Charleston County 3.58