From a total population of 5,178, Johnson County has a median age of 43.6. The average age of males, in Johnson County, is 40.6 while the average age of females is 48.1. When you compare this to median age of Nebraska, Johnson County is 7.4 years older.
The median income of individuals, in Johnson County, is $20,624 while the average household income is $44,057. When comparing the median income of people living in Johnson County to the rest of Nebraska, the average income in Johnson County is $6,715 less.