From a total population of 69,300, Onslow County has a median age of 23.5. The average age of males, in Onslow County, is 22.7 while the average age of females is 26.3. When you compare this to median age of North Carolina, Onslow County is 14.3 years younger.
The median income of individuals, in Onslow County, is $21,212 while the average household income is $41,293. When comparing the median income of people living in Onslow County to the rest of North Carolina, the average income in Onslow County is $4,396 less.