Massachusetts Citizen Voting-age Population By County in 2014 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2014, the citizen voting-age population for Massachusetts was 4,799,875 and represented 72.10% of the total Massachusetts population.

Among all Massachusetts counties, Middlesex had the highest citizen voting-age population (1.07M), followed by Worcester (585.11K), and Essex (537.37K).

In terms of percentages, Barnstable had the highest percentage of its population being citizens of voting-age (80.51%), followed by Hampshire (79.73%), and Berkshire (78.97%).

The chart and table below shows the citizen voting-age population of each county and the percentage of each county's population that were citizens of voting-age.

You can see similar information for other states and by state for the United States.

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Massachusetts Citizen Voting-age Population By County in 2014
Massachusetts Citizen Voting-age Population By County in 2014
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County Citizen Voting-age Population % of County Population
Middlesex 1073885 69.74
Worcester 585110 72.52
Essex 537370 70.95
Suffolk 510280 68.23
Norfolk 492825 72.17
Bristol 409245 74.26
Plymouth 368380 73.56
Hampden 342235 73.37
Barnstable 173230 80.51
Hampshire 127830 79.73
Berkshire 102715 78.97
Franklin 56270 78.92
Dukes 13135 77.65
Nantucket 7360 70.67