Sully is located in Iowa. Sully, Iowa has a population of 995. Sully is more family-centric than the surrounding county with 33.08% of the households containing married families with children. The county average for households married with children is 29.28%.
The median household income in Sully, Iowa is $77,774. The median household income for the surrounding county is $63,182 compared to the national median of $69,021. The median age of people living in Sully is 44 years.
The average high temperature in July is 84.5 degrees, with an average low temperature in January of 10.8 degrees. The average rainfall is approximately 36.5 inches per year, with 28.4 inches of snow per year.