Total Population 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 total population.
■ Nassau County: 1,389,591
Ranking Context
| Rank | County | Value |
|---|---|---|
| #27 | Hillsborough County, FL | 1,522,748 |
| #28 | Orange County, FL | 1,471,937 |
| #29 | Bronx County, NY | 1,404,779 |
| #30 | Nassau County, NY | 1,389,591 |
| #31 | Franklin County, OH | 1,333,048 |
| #32 | Travis County, TX | 1,330,015 |
| #33 | Oakland County, MI | 1,279,825 |
Total Population in Nassau County, New York
Nassau County, New York has a total population of 1,389,591, which ranks #30 of 3,222 out of 3,222 counties nationwide. This is 99.6% below the national value of 330M.
Within New York, Nassau County ranks #6 of 62 out of 62 counties. This places it in the 99th percentile nationally.
Total population count from the American Community Survey. 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.