Marengo is located in Iowa. Marengo, Iowa has a population of 2,515. Marengo is more family-centric than the surrounding county with 27% households with children. The county percentage for households with children is 26%.
The median household income in Marengo, Iowa is $54,119. The median household income for the surrounding county is $63,115 compared to the national median of $66,222. The median age of people living in Marengo is 42.1 years.
The average high temperature in July is 84.73 degrees, with an average low temperature in January of 8.38 degrees. The annual precipitation is 36.18.