From a total population of 617, Shelby has a median age of 41.1. The average age of males, in Shelby, is 37.1 while the average age of females is 46.2. When you compare this to median age of Iowa, Shelby is 3.1 years older.
The median income of individuals, in Shelby, is $23,557 while the average household income is $41,389. When comparing the median income of people living in Shelby to the rest of Iowa, the average income in Shelby is $4,064 less.