From a total population of 22,420, Mahaska County has a median age of 39.6. The average age of males, in Mahaska County, is 38.7 while the average age of females is 40.5. When you compare this to median age of Iowa, Mahaska County is 1.6 years older.
The median income of individuals, in Mahaska County, is $24,875 while the average household income is $48,750. When comparing the median income of people living in Mahaska County to the rest of Iowa, the average income in Mahaska County is $2,746 less.