From a total population of 815, Donnellson has a median age of 38.2. The average age of males, in Donnellson, is 38.3 while the average age of females is 36. When you compare this to median age of Iowa, Donnellson is 0.2 years older.
The median income of individuals, in Donnellson, is $20,296 while the average household income is $34,013. When comparing the median income of people living in Donnellson to the rest of Iowa, the average income in Donnellson is $7,325 less.