From a total population of 7,505, Jefferson County has a median age of 46. The average age of males, in Jefferson County, is 45.4 while the average age of females is 47. When you compare this to median age of Nebraska, Jefferson County is 9.8 years older.
The median income of individuals, in Jefferson County, is $25,291 while the average household income is $44,449. When comparing the median income of people living in Jefferson County to the rest of Nebraska, the average income in Jefferson County is $2,048 less.