From a total population of 135,817, Navajo County has a median age of 31. The average age of males, in Navajo County, is 30.7 while the average age of females is 31.3. When you compare this to median age of Arizona, Navajo County is 5.5 years younger.
The median income of individuals, in Navajo County, is $23,459 while the average household income is $48,540. When comparing the median income of people living in Navajo County to the rest of Arizona, the average income in Navajo County is $2,078 less.