Maine Citizen Population By County in 2016 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2016, the citizen population for Maine was 1,308,385 and represented 98.38% of the total Maine population.

Among all Maine counties, Cumberland had the highest citizen population (279.92K), followed by York (198.31K), and Penobscot (150.84K).

In terms of percentages, Sagadahoc had the highest percentage of its population being citizens (99.33%), followed by Piscataquis (99.30%), and Somerset (99.19%).

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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Maine Citizen Population By County in 2016
Maine Citizen Population By County in 2016
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County Citizen Population % of County Population
Cumberland 279915 97.12
York 198310 98.89
Penobscot 150835 98.60
Kennebec 119550 98.84
Androscoggin 105875 98.60
Aroostook 68285 98.39
Oxford 56695 98.94
Hancock 53485 98.17
Somerset 50950 99.19
Knox 39100 98.45
Waldo 38520 98.59
Sagadahoc 34900 99.33
Lincoln 33655 98.51
Washington 31380 98.29
Franklin 30000 99.11
Piscataquis 16925 99.30