From a total population of 6,734, Johnsburg has a median age of 39.7. The average age of males, in Johnsburg, is 39.6 while the average age of females is 39.7. When you compare this to median age of Illinois, Johnsburg is 2.7 years older.
The median income of individuals, in Johnsburg, is $34,233 while the average household income is $86,797. When comparing the median income of people living in Johnsburg to the rest of Illinois, the average income in Johnsburg is $4,214 more.