Garnavillo is located in Iowa. Garnavillo, Iowa has a population of 743. Garnavillo is more family-centric than the surrounding county with 33.17% of the households containing married families with children. The county average for households married with children is 27.23%.
The median household income in Garnavillo, Iowa is $74,191. The median household income for the surrounding county is $58,148 compared to the national median of $69,021. The median age of people living in Garnavillo is 38.7 years.
The average high temperature in July is 82.9 degrees, with an average low temperature in January of 8.6 degrees. The average rainfall is approximately 35.3 inches per year, with 35.4 inches of snow per year.
