From a total population of 9,167, Grinnell has a median age of 33.7. The average age of males, in Grinnell, is 32.1 while the average age of females is 34.8. When you compare this to median age of Iowa, Grinnell is 4.3 years younger.
The median income of individuals, in Grinnell, is $24,834 while the average household income is $45,079. When comparing the median income of people living in Grinnell to the rest of Iowa, the average income in Grinnell is $2,787 less.