Clarksville is a city located in Iowa. With a 2020 population of 1,328, it is the 228th largest city in Iowa and the 9172nd largest city in the United States. Clarksville is currently declining at a rate of -0.67% annually and its population has decreased by -7.71% since the most recent census, which recorded a population of 1,439 in 2010. Clarksville reached it's highest population of 1,441 in 2010. Spanning over 1 miles, Clarksville has a population density of 1,008 people per square mile.
The average household income in Clarksville is $54,837 with a poverty rate of 14.00%. The median rental costs in recent years comes to $587 per month, and the median house value is $99,000. The median age in Clarksville is 37.3 years, 34.8 years for males, and 43 years for females. For every 100 females there are 105.0 males.