South Elgin is located in Illinois. South Elgin, Illinois has a population of 24,340. South Elgin is more family-centric than the surrounding county with 40% households with children. The county percentage for households with children is 36%.
The median household income in South Elgin, Illinois is $99,874. The median household income for the surrounding county is $82,067 compared to the national median of $66,222. The median age of people living in South Elgin is 37.8 years.
The average high temperature in July is 83 degrees, with an average low temperature in January of 10.9 degrees. The annual precipitation is 37.22.