Penobscot County, Maine Age & Gender Distribution (2024)
Population distribution by age and gender for Penobscot County, Maine
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

Penobscot County, Maine Demographic Trend
Since 2010, the population of has changed by +1.2%%.
+1.2%% Growth
Penobscot County, Maine Age & Gender Pyramid

Figure 2: Population distribution by age and gender for 2024.
Penobscot County, Maine Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 42.5 | 154,710 |
| 2023 | 42.5 | 153,571 |
| 2022 | 42.4 | 152,640 |
| 2021 | 42.1 | 152,211 |
| 2020 | 42.2 | 151,696 |
| 2019 | 42.0 | 151,774 |
| 2018 | 42.1 | 151,748 |
| 2017 | 41.8 | 152,284 |
| 2016 | 41.6 | 152,978 |
| 2015 | 41.3 | 153,437 |
| 2014 | 40.8 | 153,627 |
| 2013 | 40.4 | 153,649 |
| 2012 | 40.0 | 153,742 |
| 2011 | 39.8 | 153,400 |
| 2010 | 39.4 | 152,934 |
Penobscot County, Maine Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 4.3% |
| 5–17 | 13.4% |
| 18–24 | 10.3% |
| 25–34 | 12.7% |
| 35–54 | 24.5% |
| 55–64 | 14.8% |
| 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.