London Mills is located in Illinois. London Mills, Illinois has a population of 405. London Mills is less family-centric than the surrounding county with 23.68% of the households containing married families with children. The county average for households married with children is 25.06%.
The median household income in London Mills, Illinois is $41,875. The median household income for the surrounding county is $48,599 compared to the national median of $57,652. The median age of people living in London Mills is 38.6 years.
The average high temperature in July is 86.6 degrees, with an average low temperature in January of 15.5 degrees. The average rainfall is approximately 39 inches per year, with 20.3 inches of snow per year.