From a total population of 30,744, Walnut has a median age of 42.7. The average age of males, in Walnut, is 40.3 while the average age of females is 44.2. When you compare this to median age of California, Walnut is 7.1 years older.
The median income of individuals, in Walnut, is $35,064 while the average household income is $100,934. When comparing the median income of people living in Walnut to the rest of California, the average income in Walnut is $5,158 more.