From a total population of 54,650, Jefferson County has a median age of 39.4. The average age of males, in Jefferson County, is 39.6 while the average age of females is 39. When you compare this to median age of West Virginia, Jefferson County is 2.2 years younger.
The median income of individuals, in Jefferson County, is $29,861 while the average household income is $66,205. When comparing the median income of people living in Jefferson County to the rest of West Virginia, the average income in Jefferson County is $6,624 more.