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The total population of Nassau County is estimated to be 1.39 million with 683,660 males (49.21%) and 705,500 females (50.79%). There are 21,840 more females than males in Nassau County.
The median household income in Nassau County was $136,818 in 2021, which marked an an increase of 800(0.59%) from $136,018 in 2020. This income is 183.39% of the U.S. median household income of $74,606 (all incomes in 2022 inflation-adjusted dollars).
Per the latest American Community Survey by the Census Bureau, Nassau County sees its highest median household income among householders in the age group of 25 to 44 years old, at $161,156. Overall, the median household income for the county of Nassau County stands at $136,984.
In Nassau County, the median income for all workers aged 15 years and older, regardless of work hours, was $66,968 for males and $41,694 for females. However, when specifically considering full-time, year-round workers within the same age group, the median income was $93,509 for males and $74,159 for females.
In Nassau County, the demographic landscape is diverse, spanning 6 distinct racial categories among households. Among these, American Indian and Alaska Native households have the highest median household income at $162,564, while Some Other Race households represent the opposite end with the lowest median household income of $106,599.
In 2022, the population of Nassau County was 1,383,726, a 0.53% decrease year-by-year from 2021. Previously, in 2021, Nassau County's population was 1,391,112, an increase of 0.04% compared to a population of 1,390,559 in 2020.
The median age in Nassau County, NY is 41.8, as per 2021 ACS 5-Year Estimates. Of the total population, 17.71% were under the age of 15, 18.46% aged 15 to 29, 46.11% aged 30 to 64, 14.95% aged 65 to 84, and 2.78% were 85 years of age and older.
Racial distribution of Nassau County population: 64.56% are White, 11.54% are Black or African American, 0.26% are American Indian and Alaska Native, 10.52% are Asian, 0.02% are Native Hawaiian and other Pacific Islander, 7.55% are some other race and 5.54% are multiracial.