From a total population of 15,363, Hamilton County has a median age of 42.3. The average age of males, in Hamilton County, is 41.1 while the average age of females is 44.4. When you compare this to median age of Iowa, Hamilton County is 4.3 years older.
The median income of individuals, in Hamilton County, is $25,531 while the average household income is $47,358. When comparing the median income of people living in Hamilton County to the rest of Iowa, the average income in Hamilton County is $2,090 less.