From a total population of 175,343, Johnston County has a median age of 37.1. The average age of males, in Johnston County, is 36 while the average age of females is 38. When you compare this to median age of North Carolina, Johnston County is 0.7 years younger.
The median income of individuals, in Johnston County, is $22,589 while the average household income is $49,799. When comparing the median income of people living in Johnston County to the rest of North Carolina, the average income in Johnston County is $3,019 less.