Walnut is located in Iowa. Walnut, Iowa has a population of 686. Walnut is less family-centric than the surrounding county with 23.43% of the households containing married families with children. The county average for households married with children is 25.85%.
The median household income in Walnut, Iowa is $50,938. The median household income for the surrounding county is $63,840 compared to the national median of $69,021. The median age of people living in Walnut is 51.2 years.
The average high temperature in July is 84.8 degrees, with an average low temperature in January of 10.6 degrees. The average rainfall is approximately 35.2 inches per year, with 28.5 inches of snow per year.
