From a total population of 15,201, Nassau County has a median age of 39.3. The average age of males, in Nassau County, is 36.5 while the average age of females is 41.7. When you compare this to median age of New York, Nassau County is 1.2 years older.
The median income of individuals, in Nassau County, is $35,553 while the average household income is $85,086. When comparing the median income of people living in Nassau County to the rest of New York, the average income in Nassau County is $2,724 more.