Ranking of Maryland Counties By Percentage of Black or African American 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 Maryland Black or African American Alone population (aged 25 years and above) who had an educational attainment of High School Graduate or Equivalent was 28.59%. Among all Maryland counties, Garrett County had the highest percentage of its Black or African American Alone population (aged 25 years and above) with an educational attainment of High School Graduate or Equivalent (60.17%), followed by Allegany County (52.84%), and Kent County (47.34%).

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 High School Graduate or Equivalent in 2021
Garrett County
Allegany County
Kent County
Queen Anne's County
Dorchester County
Somerset County
St. Mary's County
Washington County
Talbot County
Calvert County
Ranking of Maryland Counties By Percentage of Black or African American 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 Garrett County 60.17
2 Allegany County 52.84
3 Kent County 47.34
4 Queen Anne's County 44.58
5 Dorchester County 40.30
6 Somerset County 39.11
7 St. Mary's County 38.83
8 Washington County 38.07
9 Talbot County 37.57
10 Calvert County 37.49
11 Worcester County 37.28
12 Caroline County 36.92
13 Wicomico County 36.89
14 Baltimore city 36.09
15 Carroll County 34.53
16 Cecil County 33.78
17 Frederick County 29.88
18 Charles County 29.63
19 Prince George's County 27.33
20 Anne Arundel County 27.08
21 Harford County 26.57
22 Baltimore County 25.58
23 Montgomery County 19.71
24 Howard County 16.38