Cairo is located in Illinois. Cairo, Illinois has a population of 1,694. Cairo is less family-centric than the surrounding county with 3.54% of the households containing married families with children. The county average for households married with children is 13.77%.
The median household income in Cairo, Illinois is $29,375. The median household income for the surrounding county is $39,871 compared to the national median of $69,021. The median age of people living in Cairo is 46.2 years.
The average high temperature in July is 89.2 degrees, with an average low temperature in January of 25.5 degrees. The average rainfall is approximately 47.7 inches per year, with 6.9 inches of snow per year.