From a total population of 320,448, Marion County has a median age of 35.6. The average age of males, in Marion County, is 34.4 while the average age of females is 37. When you compare this to median age of Oregon, Marion County is 3.3 years younger.
The median income of individuals, in Marion County, is $22,202 while the average household income is $47,360. When comparing the median income of people living in Marion County to the rest of Oregon, the average income in Marion County is $4,971 less.