From a total population of 22,580, Jerome County has a median age of 31.7. The average age of males, in Jerome County, is 31.4 while the average age of females is 32.2. When you compare this to median age of Idaho, Jerome County is 3.5 years younger.
The median income of individuals, in Jerome County, is $17,474 while the average household income is $40,718. When comparing the median income of people living in Jerome County to the rest of Idaho, the average income in Jerome County is $5,613 less.