From a total population of 2,647, Belvidere has a median age of 41.1. The average age of males, in Belvidere, is 42.1 while the average age of females is 39.4. When you compare this to median age of New Jersey, Belvidere is 1.8 years older.
The median income of individuals, in Belvidere, is $30,404 while the average household income is $59,737. When comparing the median income of people living in Belvidere to the rest of New Jersey, the average income in Belvidere is $5,955 less.