Griswold is located in Iowa. Griswold, Iowa has a population of 1,081. Griswold is less family-centric than the surrounding county with 26.64% of the households containing married families with children. The county average for households married with children is 29.31%.
The median household income in Griswold, Iowa is $59,615. The median household income for the surrounding county is $55,395 compared to the national median of $69,021. The median age of people living in Griswold is 44.8 years.
The average high temperature in July is 85.8 degrees, with an average low temperature in January of 11.3 degrees. The average rainfall is approximately 36.3 inches per year, with 28.2 inches of snow per year.
