Ranking of Maryland Counties By Percentage of Black or African American 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 Black or African American Alone population (aged 25 years and above) who had an educational attainment of Less than High School Diploma was 9.05%. Among all Maryland counties, Allegany County had the highest percentage of its Black or African American Alone population (aged 25 years and above) with an educational attainment of Less than High School Diploma (29.20%), followed by Somerset County (21.17%), and Dorchester County (18.27%).

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 Black or African American Alone Population (Aged 25yrs+) with an Educational Attainment of Less than High School Diploma in 2021
Allegany County
Somerset County
Dorchester County
Wicomico County
Washington County
Caroline County
Worcester County
Baltimore city
Talbot County
St. Mary's County
Ranking of Maryland Counties By Percentage of Black or African American 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 Allegany County 29.20
2 Somerset County 21.17
3 Dorchester County 18.27
4 Wicomico County 17.53
5 Washington County 17.38
6 Caroline County 17.32
7 Worcester County 17.11
8 Baltimore city 15.85
9 Talbot County 14.83
10 St. Mary's County 14.45
11 Calvert County 14.22
12 Kent County 13.33
13 Cecil County 12.32
14 Carroll County 11.79
15 Queen Anne's County 9.67
16 Baltimore County 7.77
17 Frederick County 7.63
18 Anne Arundel County 7.09
19 Garrett County 6.78
20 Harford County 6.44
21 Montgomery County 6.29
22 Prince George's County 6.24
23 Charles County 5.58
24 Howard County 4.12