Hartwick is located in Iowa. Hartwick, Iowa has a population of 110. Hartwick is more family-centric than the surrounding county with 44.44% of the households containing married families with children. The county average for households married with children is 29.66%.
The median household income in Hartwick, Iowa is $53,750. The median household income for the surrounding county is $51,456 compared to the national median of $57,652. The median age of people living in Hartwick is 35.1 years.
The average high temperature in July is 84 degrees, with an average low temperature in January of 9.1 degrees. The average rainfall is approximately 36.4 inches per year, with 28.5 inches of snow per year.
