Griswold is located in Iowa. Griswold, Iowa has a population of 1,214. Griswold is more family-centric than the surrounding county with 34.38% of the households containing married families with children. The county average for households married with children is 29.09%.
The median household income in Griswold, Iowa is $44,000. The median household income for the surrounding county is $45,637 compared to the national median of $57,652. The median age of people living in Griswold is 34.9 years.
The average high temperature in July is 85.9 degrees, with an average low temperature in January of 9.7 degrees. The average rainfall is approximately 35.2 inches per year, with 26.6 inches of snow per year.
