Markleville is a city located in Madison County Indiana. With a 2020 population of 511, it is the 417th largest city in Indiana and the 13219th largest city in the United States . Markleville is currently declining at a rate of -0.20% annually and its population has decreased by -3.22% since the most recent census, which recorded a population of 528 in 2010. Markleville reached it's highest population of in . Spanning over 1 miles, Markleville has a population density of 922 people per square mile.
The average household income in Markleville is $64,753 with a poverty rate of 5.62%. The median rental costs in recent years comes to $836 per month, and the median house value is $93,500. The median age in Markleville is 41.5 years, 41.5 years for males, and 41.5 years for females.