Ranking of Maryland 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 Maryland White Alone population (aged 25 years and above) who had an educational attainment of Less than High School Diploma was 6.51%. Among all Maryland counties, Caroline 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 (13.41%), followed by Somerset County (13.33%), and Washington County (11.07%).

The chart below shows the top 10 Maryland counties, and the table below shows the ranking of all Maryland 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 Maryland Counties By Percentage of White Alone Population (Aged 25yrs+) with an Educational Attainment of Less than High School Diploma in 2021
Caroline County
Somerset County
Washington County
Prince George's County
Garrett County
Dorchester County
Wicomico County
Cecil County
Kent County
Baltimore city
Ranking of Maryland 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 Caroline County 13.41
2 Somerset County 13.33
3 Washington County 11.07
4 Prince George's County 10.38
5 Garrett County 9.70
6 Dorchester County 9.51
7 Wicomico County 9.28
8 Cecil County 8.97
9 Kent County 8.55
10 Baltimore city 8.49
11 Allegany County 7.99
12 St. Mary's County 7.38
13 Baltimore County 7.09
14 Talbot County 6.81
15 Queen Anne's County 6.20
16 Charles County 6.08
17 Frederick County 5.87
18 Harford County 5.85
19 Worcester County 5.76
20 Carroll County 5.48
21 Anne Arundel County 5.28
22 Montgomery County 4.55
23 Calvert County 4.08
24 Howard County 3.04