Dahlgren is located in Illinois. Dahlgren, Illinois has a population of 492. Dahlgren is less family-centric than the surrounding county with 9.76% of the households containing married families with children. The county average for households married with children is 32.98%.
The median household income in Dahlgren, Illinois is $36,875. The median household income for the surrounding county is $47,293 compared to the national median of $57,652. The median age of people living in Dahlgren is 53.8 years.
The average high temperature in July is 88.7 degrees, with an average low temperature in January of 22.2 degrees. The average rainfall is approximately 45.4 inches per year, with 12.3 inches of snow per year.
