Arrowsmith is located in Illinois. Arrowsmith, Illinois has a population of 412. Arrowsmith is less family-centric than the surrounding county with 13.89% of the households containing married families with children. The county average for households married with children is 33.65%.
The median household income in Arrowsmith, Illinois is $73,750. The median household income for the surrounding county is $70,339 compared to the national median of $69,021. The median age of people living in Arrowsmith is 35.1 years.
The average high temperature in July is 84.1 degrees, with an average low temperature in January of 16 degrees. The average rainfall is approximately 37.8 inches per year, with 19.4 inches of snow per year.