Grand Chain is located in Illinois. Grand Chain, Illinois has a population of 986. Grand Chain is less family-centric than the surrounding county with 8.67% of the households containing married families with children. The county average for households married with children is 18.55%.
The median household income in Grand Chain, Illinois is $64,444. The median household income for the surrounding county is $40,197 compared to the national median of $69,021. The median age of people living in Grand Chain is 47.7 years.
The average high temperature in July is 88.8 degrees, with an average low temperature in January of 25.2 degrees. The average rainfall is approximately 49.4 inches per year, with 7.3 inches of snow per year.
