From a total population of 5,129, Williamsville has a median age of 40.5. The average age of males, in Williamsville, is 38.6 while the average age of females is 42.3. When you compare this to median age of New York, Williamsville is 2.4 years older.
The median income of individuals, in Williamsville, is $28,512 while the average household income is $51,050. When comparing the median income of people living in Williamsville to the rest of New York, the average income in Williamsville is $4,317 less.