Grafton is located in Iowa. Grafton, Iowa has a population of 203. Grafton is less family-centric than the surrounding county with 31.15% of the households containing married families with children. The county average for households married with children is 31.66%.
The median household income in Grafton, Iowa is $62,813. The median household income for the surrounding county is $63,795 compared to the national median of $69,021. The median age of people living in Grafton is 50.4 years.
The average high temperature in July is 81.5 degrees, with an average low temperature in January of 5.8 degrees. The average rainfall is approximately 35.4 inches per year, with 38.8 inches of snow per year.