From a total population of 31,630, Polk County has a median age of 39.7. The average age of males, in Polk County, is 37.3 while the average age of females is 42.3. When you compare this to median age of Minnesota, Polk County is 2.1 years older.
The median income of individuals, in Polk County, is $25,823 while the average household income is $51,025. When comparing the median income of people living in Polk County to the rest of Minnesota, the average income in Polk County is $5,819 less.