From a total population of 40,608, Westfield has a median age of 36.8. The average age of males, in Westfield, is 35.9 while the average age of females is 37.6. When you compare this to median age of Massachusetts, Westfield is 2.5 years younger.
The median income of individuals, in Westfield, is $27,664 while the average household income is $60,845. When comparing the median income of people living in Westfield to the rest of Massachusetts, the average income in Westfield is $8,777 less.