From a total population of 142,783, Kootenai County has a median age of 39.4. The average age of males, in Kootenai County, is 37.8 while the average age of females is 40.9. When you compare this to median age of Idaho, Kootenai County is 4.2 years older.
The median income of individuals, in Kootenai County, is $25,190 while the average household income is $49,292. When comparing the median income of people living in Kootenai County to the rest of Idaho, the average income in Kootenai County is $2,103 more.