Maine Population By County in 2018

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2018, the population of Maine was 1,340,123. Among all Maine counties, Cumberland had the highest population (294,363), followed by York (206,041), and Penobscot (151,798). Piscataquis was the least populated county (16,714).

Hover over or click on the counties in the map below to see the populations. The data can also be found in a table below. You can use the table to sort, filter, and explore the data further.

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

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Maine Population By County in 2018
Maine Population By County in 2018
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County Population % of State Population
Androscoggin 107987 8.06
Aroostook 67302 5.02
Cumberland 294363 21.97
Franklin 29831 2.23
Hancock 54849 4.09
Kennebec 122086 9.11
Knox 39760 2.97
Lincoln 34396 2.57
Oxford 57777 4.31
Penobscot 151798 11.33
Piscataquis 16714 1.25
Sagadahoc 35821 2.67
Somerset 50568 3.77
Waldo 39678 2.96
Washington 31152 2.33
York 206041 15.38