Marengo is a city located in Crawford County Indiana. With a 2020 population of 801, it is the 342nd largest city in Indiana and the 11275th largest city in the United States . Marengo is currently declining at a rate of -0.37% annually and its population has decreased by -3.26% since the most recent census, which recorded a population of 828 in 2010. Marengo reached it's highest population of 825 in 2010. Spanning over 1 miles, Marengo has a population density of 1,034 people per square mile.
The average household income in Marengo is $40,524 with a poverty rate of 27.58%. The median rental costs in recent years comes to $675 per month, and the median house value is $73,000. The median age in Marengo is 37.3 years, 37.9 years for males, and 35 years for females.