Maine Citizen Population By County in 2012 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2012, the citizen population for Maine was 1,309,580 and represented 98.53% of the total Maine population.

Among all Maine counties, Cumberland had the highest citizen population (275.01K), followed by York (195.76K), and Penobscot (151.63K).

In terms of percentages, Somerset had the highest percentage of its population being citizens (99.42%), followed by Oxford (99.37%), and Franklin (99.20%).

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.

See this for other years:
Maine Citizen Population By County in 2012
Maine Citizen Population By County in 2012
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County Citizen Population % of County Population
Cumberland 275005 97.47
York 195755 98.94
Penobscot 151625 98.62
Kennebec 121000 99.16
Androscoggin 105845 98.22
Aroostook 70490 98.24
Oxford 57450 99.37
Hancock 53550 98.31
Somerset 51795 99.42
Knox 39415 98.91
Waldo 38380 99.02
Sagadahoc 35050 99.03
Lincoln 34090 98.98
Washington 32400 98.69
Franklin 30460 99.20
Piscataquis 17260 99.03