Population ages 18-64 by age group 1997-2007 & 2012-2018 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 2014 to 2018. Statewide, ages 18 -24 were down by 5,200 or 4.6%, while adults ages 25-64 were down by 10,106 or 1.4%.

At the county level for the most recent year, Penobscot had 1,757 fewer young adults ages 18 -24 in 2018 compared to 2014, a reduction of 10% or about 34% of the total state's decrease for this age group. Aroostook, Hancock and Androscoggin Counties each had approximately 500 fewer young adults in 2018 compared to 2014. While every county had declines in the number of young adults ages 18 -24, Lincoln, Somerset and York lost 2% or less of the population in this age group.

For the population ages 25-64, between 2014 and 2018, Aroostook had the highest decline in the number of people, with 2,448 less people or a 6.8% reduction. Penobscot County population for this age group declined by 1,963 or 2,4%. The only counties that gained in population for ages 25-64 between 2014 and 2018 were Cumberland and York Counties which added 1,116 and 805 people in this age group.
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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 February 2020.