From a total population of 6,599, Allendale has a median age of 43.4. The average age of males, in Allendale, is 41 while the average age of females is 44.8. When you compare this to median age of New Jersey, Allendale is 4.1 years older.
The median income of individuals, in Allendale, is $57,190 while the average household income is $124,821. When comparing the median income of people living in Allendale to the rest of New Jersey, the average income in Allendale is $20,831 more.