From a total population of 7,337, Sandwich has a median age of 37.6. The average age of males, in Sandwich, is 34.4 while the average age of females is 42.1. When you compare this to median age of Illinois, Sandwich is 0.6 years older.
The median income of individuals, in Sandwich, is $24,957 while the average household income is $56,657. When comparing the median income of people living in Sandwich to the rest of Illinois, the average income in Sandwich is $5,062 less.