Massachusetts Citizen 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 population for Massachusetts was 6,160,855 and represented 92.54% of the total Massachusetts population.

Among all Massachusetts counties, Middlesex had the highest citizen population (1.38M), followed by Worcester (762.56K), and Essex (702.12K).

In terms of percentages, Franklin had the highest percentage of its population being citizens (97.57%), followed by Berkshire (97.37%), and Barnstable (96.88%).

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

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

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Massachusetts Citizen Population By County in 2014
Massachusetts Citizen Population By County in 2014
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County Citizen Population % of County Population
Middlesex 1382810 89.80
Worcester 762560 94.52
Essex 702115 92.70
Norfolk 639705 93.68
Suffolk 632505 84.57
Bristol 526930 95.62
Plymouth 483215 96.49
Hampden 447235 95.88
Barnstable 208445 96.88
Hampshire 153345 95.64
Berkshire 126645 97.37
Franklin 69570 97.57
Dukes 16295 96.34
Nantucket 9480 91.02