Castalia is located in Iowa. Castalia, Iowa has a population of 158. Castalia is less family-centric than the surrounding county with 22.5% of the households containing married families with children. The county average for households married with children is 30.51%.
The median household income in Castalia, Iowa is $46,667. The median household income for the surrounding county is $65,330 compared to the national median of $69,021. The median age of people living in Castalia is 57.4 years.
The average high temperature in July is 82 degrees, with an average low temperature in January of 8.2 degrees. The average rainfall is approximately 36.5 inches per year, with 38.3 inches of snow per year.