Massachusetts Citizen Voting-age Population By County in 2024 (ACS-5Yrs)

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2024, the citizen voting-age population for Massachusetts was 5,155,255 and represented 73.19% of the total Massachusetts population.

Among all Massachusetts counties, Middlesex had the highest citizen voting-age population (1.15M), followed by Worcester (636.63K), and Essex (583.29K).

In terms of percentages, Hampshire had the highest percentage of its population being citizens of voting-age (82.08%), followed by Barnstable (81.82%), and Berkshire (81.39%).

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.