Grand Chain is located in Illinois. Grand Chain, Illinois has a population of 787. Grand Chain is less family-centric than the surrounding county with 17% households with children. The county percentage for households with children is 17%.
The median household income in Grand Chain, Illinois is $47,313. The median household income for the surrounding county is $38,261 compared to the national median of $66,222. The median age of people living in Grand Chain is 41.6 years.
The average high temperature in July is 89.7 degrees, with an average low temperature in January of 25.6 degrees. The annual precipitation is 47.84.