From a total population of 1,325, Saint John has a median age of 37.7. The average age of males, in Saint John, is 31.6 while the average age of females is 41.5. When you compare this to median age of Kansas, Saint John is 1.7 years older.
The median income of individuals, in Saint John, is $20,707 while the average household income is $41,776. When comparing the median income of people living in Saint John to the rest of Kansas, the average income in Saint John is $6,660 less.