From a total population of 1,388, Clarksville has a median age of 37.7. The average age of males, in Clarksville, is 36.2 while the average age of females is 42.2. When you compare this to median age of Iowa, Clarksville is 0.3 years younger.
The median income of individuals, in Clarksville, is $21,136 while the average household income is $43,833. When comparing the median income of people living in Clarksville to the rest of Iowa, the average income in Clarksville is $6,485 less.