Maine Population By County in 2020

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2020, the population of Maine was 1,363,557. Among all Maine counties, Cumberland[object Promise] had the highest population (303,570), followed by York[object Promise] (212,256), and Penobscot[object Promise] (152,165). Piscataquis[object Promise] was the least populated county (16,805).

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 2020
Maine Population By County in 2020
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County Population % of State Population
Androscoggin 111180 8.15
Aroostook 67064 4.92
Cumberland 303570 22.26
Franklin 29460 2.16
Hancock 55500 4.07
Kennebec 123832 9.08
Knox 40657 2.98
Lincoln 35249 2.59
Oxford 57894 4.25
Penobscot 152165 11.16
Piscataquis 16805 1.23
Sagadahoc 36724 2.69
Somerset 50460 3.70
Waldo 39654 2.91
Washington 31087 2.28
York 212256 15.57