Ranking of South Carolina Counties By Percentage of Non-Hispanic White Alone Population Aged 25 years and above with an Educational attainment of High School Graduate or Equivalent 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 Non-Hispanic White Alone population (aged 25 years and above) who had an educational attainment of High School Graduate or Equivalent was 26.47%. Among all South Carolina counties, Allendale County had the highest percentage of its Non-Hispanic White Alone population (aged 25 years and above) with an educational attainment of High School Graduate or Equivalent (49.79%), followed by Marlboro County (45.63%), and Hampton County (42.08%).

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 Non-Hispanic White Alone Population (Aged 25yrs+) with an Educational Attainment of High School Graduate or Equivalent in 2021
Allendale County
Marlboro County
Hampton County
Lee County
Marion County
Chester County
Williamsburg County
Dillon County
Colleton County
Chesterfield County
Ranking of South Carolina Counties By Percentage of Non-Hispanic White Alone Population (Aged 25yrs+) with an Educational Attainment of High School Graduate or Equivalent in 2021
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Rank County Percentage of Population (Aged 25yrs+) (%)
1 Allendale County 49.79
2 Marlboro County 45.63
3 Hampton County 42.08
4 Lee County 41.86
5 Marion County 41.27
6 Chester County 41.26
7 Williamsburg County 40.45
8 Dillon County 39.91
9 Colleton County 39.74
10 Chesterfield County 37.61
11 Union County 37.46
12 Abbeville County 36.36
13 Cherokee County 36.14
14 Barnwell County 35.35
14 Laurens County 35.35
15 Kershaw County 34.95
16 Clarendon County 34.92
17 Edgefield County 34.69
18 Saluda County 34.39
19 Bamberg County 33.91
20 Fairfield County 33.15
21 McCormick County 33.08
22 Darlington County 32.86
23 Newberry County 32.40
24 Horry County 31.47
25 Calhoun County 30.70
26 Spartanburg County 30.66
27 Florence County 29.97
28 Anderson County 29.86
29 Pickens County 29.50
30 Aiken County 29.09
31 Sumter County 29.05
32 Berkeley County 28.73
33 Jasper County 28.72
34 Oconee County 28.41
35 Greenwood County 28.21
36 Lancaster County 27.09
37 Orangeburg County 27.04
38 Lexington County 26.56
39 Dorchester County 25.48
40 York County 23.30
41 Georgetown County 22.22
42 Greenville County 20.70
43 Beaufort County 17.54
44 Richland County 16.87
45 Charleston County 14.94