From a total population of 10,068, Washington County has a median age of 44.3. The average age of males, in Washington County, is 43.1 while the average age of females is 44.9. When you compare this to median age of Idaho, Washington County is 9.1 years older.
The median income of individuals, in Washington County, is $19,342 while the average household income is $36,483. When comparing the median income of people living in Washington County to the rest of Idaho, the average income in Washington County is $3,745 less.