Median Age in Nassau County, NY
ACS 2024 5-Year Estimates
How Nassau County Compares
National Distribution
Where Nassau County falls among all 3,222 U.S. counties for median age.
■ Nassau County: 42.0 years
Ranking Context
| Rank | County | Value |
|---|---|---|
| #1,496 | Rio Arriba County, NM | 42.0 years |
| #1,497 | Chemung County, NY | 42.0 years |
| #1,498 | Franklin County, NY | 42.0 years |
| #1,499 | Nassau County, NY | 42.0 years |
| #1,500 | Greer County, OK | 42.0 years |
| #1,501 | Major County, OK | 42.0 years |
| #1,502 | Roger Mills County, OK | 42.0 years |
Median Age in Nassau County, New York
Nassau County, New York has a median age of 42.0 years, which ranks #1,499 of 3,222 out of 3,222 counties nationwide. This is 8.0% above the national value of 38.9 years.
Within New York, Nassau County ranks #33 of 62 out of 62 counties. This places it in the 53th percentile nationally.
The median age of the total population. All data comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates for 2024.
About this data
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates (2024). All values are estimates derived from survey samples and are subject to margin of error. For more information, see our methodology.