Summerfield is located in Illinois. Summerfield, Illinois has a population of 339. Summerfield is less family-centric than the surrounding county with 10.87% of the households containing married families with children. The county average for households married with children is 26.14%.
The median household income in Summerfield, Illinois is $44,125. The median household income for the surrounding county is $63,017 compared to the national median of $69,021. The median age of people living in Summerfield is 43.5 years.
The average high temperature in July is 88.8 degrees, with an average low temperature in January of 21.4 degrees. The average rainfall is approximately 42 inches per year, with 11 inches of snow per year.
