From a total population of 409,239, Ada County has a median age of 35.5. The average age of males, in Ada County, is 34.7 while the average age of females is 36.2. When you compare this to median age of Idaho, Ada County is 0.3 years older.
The median income of individuals, in Ada County, is $28,318 while the average household income is $55,805. When comparing the median income of people living in Ada County to the rest of Idaho, the average income in Ada County is $5,231 more.