Data / Rankings / Median age / Counties in Maine

Counties in Maine by median age

Piscataquis County had the highest median age of 16 counties in 2023, at 51.4 years. Androscoggin County had the lowest, at 40.8 years. The median was 47.1 years and the figure for Maine was 44.8 years. Source: the U.S. Census Bureau.

Highest51.4Piscataquis County
Lowest40.8Androscoggin County
Median47.116 counties
Maine44.8History

All counties, 2023

CSVChart (SVG)

Piscataquis CountyPiscataquis County: 51.4 years51.4Lincoln CountyLincoln County: 51.1 years51.1Knox CountyKnox County: 49.2 years49.2Hancock CountyHancock County: 49.1 years49.1Washington CountyWashington County: 48.6 years48.6Aroostook CountyAroostook County: 48.4 years48.4Oxford CountyOxford County: 48.3 years48.3Sagadahoc CountySagadahoc County: 47.3 years47.3Somerset CountySomerset County: 46.9 years46.9Waldo CountyWaldo County: 46.9 years46.9Franklin CountyFranklin County: 46.1 years46.1York CountyYork County: 45.3 years45.3Kennebec CountyKennebec County: 44 years44Penobscot CountyPenobscot County: 42.5 years42.5Cumberland CountyCumberland County: 42.1 years42.1Androscoggin CountyAndroscoggin County: 40.8 years40.8
years. Source: U.S. Census Bureau. Retrieved 2026-10-08.

Full ranking

RankCounties2023
years		Change on 2022
1Piscataquis County51.4+0.2
2Lincoln County51.1-0.2
3Knox County49.2+0.2
4Hancock County49.1+0.2
5Washington County48.60
6Aroostook County48.4-0.1
7Oxford County48.3+0.1
8Sagadahoc County47.3+0.6
9Somerset County46.9-0.1
9Waldo County46.9-0.1
11Franklin County46.1-0.2
12York County45.3+0.1
13Kennebec County44-0.3
14Penobscot County42.5+0.1
15Cumberland County42.10
16Androscoggin County40.80

Other periods

About this ranking

Age that divides the resident population into two halves of equal size. Spain and the EU: on 1 January. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. American Community Survey 5-year estimates, table B01002: median age, total population. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b01002.dat. Retrieved 2026-10-08.

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Questions

Which county has the highest median age?

Piscataquis County, with 51.4 years in 2023, according to the U.S. Census Bureau.

Which county has the lowest median age?

Androscoggin County, with 40.8 years in 2023.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B01002: median age, total population. Retrieved 2026-10-08.

Median age: other rankings

Counties in Maine: more rankings