Nassau County, New York Age & Gender Distribution (2024)
Population distribution by age and gender for Nassau County, New York
Nassau County, New York Age & Gender Statistics (2024)
Total Population
1,389,591
Median Age
42.0
Male Median
40.6
Female Median
43.2
Nassau County, New York Population Growth
Nassau County, New York Demographic Trend
Since 2010, the population of has changed by +4.6%%.
+4.6%% Growth
Nassau County, New York Age & Gender Pyramid
Figure 2: Population distribution by age and gender for 2024.
Nassau County, New York Historical Population Data
| Year | Median Age | Population |
|---|---|---|
| 2024 | 42.0 | 1,389,591 |
| 2023 | 41.8 | 1,388,138 |
| 2022 | 41.7 | 1,389,160 |
| 2021 | 41.8 | 1,391,678 |
| 2020 | 41.9 | 1,355,683 |
| 2019 | 41.7 | 1,356,509 |
| 2018 | 41.6 | 1,356,564 |
| 2017 | 41.5 | 1,363,069 |
| 2016 | 41.4 | 1,356,801 |
| 2015 | 41.3 | 1,354,612 |
| 2014 | 41.3 | 1,350,601 |
| 2013 | 41.2 | 1,343,765 |
| 2012 | 41.2 | 1,338,712 |
| 2011 | 40.9 | 1,332,947 |
| 2010 | 40.7 | 1,329,083 |
Nassau County, New York Age Group Breakdown (2024)
| Age Cohort | Percentage |
|---|---|
| Under 5 | 5.3% |
| 5–17 | 16.2% |
| 18–24 | 8.3% |
| 25–34 | 11.7% |
| 35–54 | 25.6% |
| 55–64 | 14.3% |
| 65+ | 18.7% |
Dependency Ratios for Nassau County, New York
- Total Dependency Ratio:
- 67.1
- Youth Dependency:
- 35.9
- Old-Age Dependency:
- 31.2
The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).
Age & Gender FAQs for Nassau County, New York
The median age in Nassau County, New York is 42.0 years.
According to latest Census data, the total population of Nassau County, New York is 1,389,591.
In Nassau County, New York, seniors (ages 65+) make up 18.7% of the population, while children under 18 represent 16.2%.
Based on historical data since 2010, the population in Nassau County, New York has remained stable.