From a total population of 3,504, Saint Johns has a median age of 46.7. The average age of males, in Saint Johns, is 43 while the average age of females is 49.4. When you compare this to median age of Arizona, Saint Johns is 10.2 years older.
The median income of individuals, in Saint Johns, is $20,657 while the average household income is $36,686. When comparing the median income of people living in Saint Johns to the rest of Arizona, the average income in Saint Johns is $4,880 less.