Penobscot County, Maine Age & Gender Statistics (2024)

Total Population

154,710

Median Age

42.5

Male Median

41.1

Female Median

43.9

Penobscot County, Maine Population Growth

Population trends in
Figure 1: Annual population growth trend for (2010–2024).

Penobscot County, Maine Demographic Trend

Since 2010, the population of has changed by +1.2%%.

+1.2%% Growth

Penobscot County, Maine Age & Gender Pyramid

Population pyramid for

Figure 2: Population distribution by age and gender for 2024.


Penobscot County, Maine Historical Population Data

YearMedian AgePopulation
202442.5154,710
202342.5153,571
202242.4152,640
202142.1152,211
202042.2151,696
201942.0151,774
201842.1151,748
201741.8152,284
201641.6152,978
201541.3153,437
201440.8153,627
201340.4153,649
201240.0153,742
201139.8153,400
201039.4152,934

Penobscot County, Maine Age Group Breakdown (2024)

Age CohortPercentage
Under 54.3%
5–1713.4%
18–2410.3%
25–3412.7%
35–5424.5%
55–6414.8%
65+20.1%

Dependency Ratios for Penobscot County, Maine

Total Dependency Ratio:
60.5
Youth Dependency:
28.3
Old-Age Dependency:
32.3

The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).



Age & Gender FAQs for Penobscot County, Maine

The median age in Penobscot County, Maine is 42.5 years.

According to latest Census data, the total population of Penobscot County, Maine is 154,710.

In Penobscot County, Maine, seniors (ages 65+) make up 20.1% of the population, while children under 18 represent 13.4%.

Based on historical data since 2010, the population in Penobscot County, Maine is aging.
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