Ranking of Maine Counties By 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 Maine White Alone population (aged 25 years and above) who had an educational attainment of High School Graduate or Equivalent was 292,814. Among all Maine counties, York County had the highest White Alone population (aged 25 years and above) with an educational attainment of High School Graduate or Equivalent (43,881), followed by Cumberland County (41,180), and Penobscot County (34,222).

The chart below shows the top 10 Maine counties, and the table below shows the ranking of all Maine 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 Maine Counties By White Alone Population (Aged 25yrs+) with an Educational Attainment of High School Graduate or Equivalent in 2021
York County
Cumberland County
Penobscot County
Kennebec County
Androscoggin County
Aroostook County
Oxford County
Somerset County
Hancock County
Knox County
Ranking of Maine Counties By White Alone Population (Aged 25yrs+) with an Educational Attainment of High School Graduate or Equivalent in 2021
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Rank County Number of People
1 York County 43881
2 Cumberland County 41180
3 Penobscot County 34222
4 Kennebec County 29773
5 Androscoggin County 25907
6 Aroostook County 18361
7 Oxford County 16746
8 Somerset County 14878
9 Hancock County 12922
10 Knox County 9313
11 Waldo County 9242
12 Lincoln County 8444
13 Washington County 7958
14 Sagadahoc County 7608
15 Franklin County 7566
16 Piscataquis County 4813