Chapin is located in Illinois. Chapin, Illinois has a population of 527. Chapin is more family-centric than the surrounding county with 34.68% of the households containing married families with children. The county average for households married with children is 23.69%.
The median household income in Chapin, Illinois is $61,350. The median household income for the surrounding county is $55,261 compared to the national median of $69,021. The median age of people living in Chapin is 32.8 years.
The average high temperature in July is 87.1 degrees, with an average low temperature in January of 17.8 degrees. The average rainfall is approximately 40 inches per year, with 18.4 inches of snow per year.