Mercer County, New Jersey Age & Gender Distribution (2024)
Population distribution by age and gender for Mercer County, New Jersey
Mercer County, New Jersey Age & Gender Statistics (2024)
Total Population
385,864
Median Age
39.5
Male Median
38.0
Female Median
40.8
Mercer County, New Jersey Population Growth
Mercer County, New Jersey Demographic Trend
Since 2010, the population of has changed by +5.9%%.
+5.9%% Growth
Mercer County, New Jersey Age & Gender Pyramid
Figure 2: Population distribution by age and gender for 2024.
Mercer County, New Jersey Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 39.5 | 385,864 |
| 2023 | 39.2 | 383,286 |
| 2022 | 39.3 | 383,732 |
| 2021 | 38.9 | 384,951 |
| 2020 | 38.8 | 368,085 |
| 2019 | 38.8 | 367,922 |
| 2018 | 38.7 | 368,762 |
| 2017 | 38.6 | 373,362 |
| 2016 | 38.5 | 371,101 |
| 2015 | 38.4 | 370,212 |
| 2014 | 38.3 | 369,526 |
| 2013 | 38.1 | 368,094 |
| 2012 | 37.8 | 366,442 |
| 2011 | 37.7 | 365,318 |
| 2010 | 37.4 | 364,445 |
Mercer County, New Jersey Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 5.6% |
| 5–17 | 16.4% |
| 18–24 | 10.2% |
| 25–34 | 12.4% |
| 35–54 | 26.5% |
| 55–64 | 13.0% |
| 65+ | 16.0% |
Dependency Ratios for Mercer County, New Jersey
- Total Dependency Ratio:
- 61.1
- Youth Dependency:
- 35.4
- Old-Age Dependency:
- 25.7
The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).
Age & Gender FAQs for Mercer County, New Jersey
The median age in Mercer County, New Jersey is 39.5 years.
According to latest Census data, the total population of Mercer County, New Jersey is 385,864.
In Mercer County, New Jersey, seniors (ages 65+) make up 16.0% of the population, while children under 18 represent 16.4%.
Based on historical data since 2010, the population in Mercer County, New Jersey is aging.