Population ages 18-64 by age group 1997-2007 & 2012-2019 in Maine

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Why This Indicator Matters

Having an overall count by age group and county helps understand issues of access and service use by county. Seeing trends over time of populations in age groups shows counties that are gaining or losing population.

What the data shows

For Maine as a whole, both the young adult population, ages 18-24 and the adult population ages 25-64 have declined from 2015 to 2019. Statewide, ages 18 -24 were down by 3,914 or 3.5%, while adults ages 25-64 were down by 11,911 or 1.4%.

At the county level for the most recent year, Penobscot had 723 fewer young adults ages 18 -24 in 2019 compared to 2015, a reduction of 4.3%. Aroostook had the highest rate of reduction at 8.7 % or 470 fewer young adults. Cumberland County also had a population reduction of almost 700 youth.  While every county had declines in the number of young adults ages 18 -24, Androscoggin, Knox, Lincoln and Somerset lost 2% or less of the population in this age group.

For the population ages 25-64, between 2015 and 2019, Aroostook had the highest decline in the number of people, with 2,293 less people or a 6.5% reduction. Penobscot County population for this age group declined by 1,498 or 1.8%. The only counties that gained in population for ages 25-64 between 2015 and 2019 were Cumberland and York Counties which added 662 and 1,366 people in this age group. This means the workforce is growing in these two counties.
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Data Provided By

Definitions: The number of individuals ages 18-24 and ages 25-64.

Data Source: Maine Department of Health and Human Services, Office of Data, Research and Vital Statistics. 

Footnotes: Updated March 2021