Ranking of Maine Counties By Total Voting-age Population (18yrs and over) from Census 2020

Updated on August 22, 2023.

According to the data from the US 2020 Census, as at April 2020, among all the counties in Maine, Cumberland County had the highest voting-age population (18 years and over) (247.10K), followed by York County (173.46K), and Penobscot County (124.47K).

The chart below shows the top 10 counties with high voting-age population, and the table below shows the ranking of all Maine counties based on voting-age population.

You can also see the ranking of counties by population for other states as well as for the whole United States.

Ranking of Maine Counties By Total Voting-age Population from Census 2020
Cumberland
247.10K
York
173.46K
Penobscot
124.47K
Kennebec
100.40K
Androscoggin
87.87K
Aroostook
54.34K
Oxford
46.64K
Hancock
46.16K
Somerset
40.89K
Knox
33.70K
Ranking of Maine Counties By Total Voting-age Population from Census 2020
Rank
County
Voting-age Population
1 Cumberland County 247,098
2 York County 173,464
3 Penobscot County 124,474
4 Kennebec County 100,401
5 Androscoggin County 87,871
6 Aroostook County 54,341
7 Oxford County 46,644
8 Hancock County 46,160
9 Somerset County 40,887
10 Knox County 33,700
11 Waldo County 32,289
12 Sagadahoc County 29,938
13 Lincoln County 29,468
14 Washington County 25,404
15 Franklin County 24,045
16 Piscataquis County 13,901
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