Ranking of Massachusetts 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 Massachusetts White Alone population (aged 25 years and above) who had an educational attainment of High School Graduate or Equivalent was 885,098. Among all Massachusetts counties, Middlesex County had the highest White Alone population (aged 25 years and above) with an educational attainment of High School Graduate or Equivalent (159,205), followed by Worcester County (136,346), and Essex County (107,196).

The chart below shows the top 10 Massachusetts counties, and the table below shows the ranking of all Massachusetts 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 Massachusetts Counties By White Alone Population (Aged 25yrs+) with an Educational Attainment of High School Graduate or Equivalent in 2021
Middlesex County
Worcester County
Essex County
Bristol County
Plymouth County
Hampden County
Norfolk County
Suffolk County
Barnstable County
Berkshire County
Ranking of Massachusetts 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 Middlesex County 159205
2 Worcester County 136346
3 Essex County 107196
4 Bristol County 104767
5 Plymouth County 81809
6 Hampden County 74315
7 Norfolk County 71156
8 Suffolk County 50860
9 Barnstable County 34792
10 Berkshire County 25900
11 Hampshire County 19864
12 Franklin County 14297
13 Dukes County 3232
14 Nantucket County 1359