Grinnell is located in Iowa. Grinnell, Iowa has a population of 9,481. Grinnell is more family-centric than the surrounding county with 29.92% of the households containing married families with children. The county average for households married with children is 28.44%.
The median household income in Grinnell, Iowa is $49,045. The median household income for the surrounding county is $56,080 compared to the national median of $69,021. The median age of people living in Grinnell is 38.6 years.
The average high temperature in July is 83.9 degrees, with an average low temperature in January of 9.8 degrees. The average rainfall is approximately 36.6 inches per year, with 27.2 inches of snow per year.
