McCullom Lake is located in Illinois. McCullom Lake, Illinois has a population of 1,054. McCullom Lake is more family-centric than the surrounding county with 45.02% of the households containing married families with children. The county average for households married with children is 33.95%.
The median household income in McCullom Lake, Illinois is $67,083. The median household income for the surrounding county is $93,801 compared to the national median of $69,021. The median age of people living in McCullom Lake is 35.8 years.
The average high temperature in July is 81.9 degrees, with an average low temperature in January of 12.9 degrees. The average rainfall is approximately 36.1 inches per year, with 37.3 inches of snow per year.