Real Estate in Alton, IL
Alton is located in Illinois. Alton, Illinois has a population of 27,868. Alton is less family-centric than the surrounding county with 25.32% of the households containing married families with children. The county average for households married with children is 29.8%.
The median household income in Alton, Illinois is $35,776. The median household income for the surrounding county is $52,756 compared to the national median of $53,046. The median age of people living in Alton is 33.9 years.
The average high temperature in July is 88 degrees, with an average low temperature in January of 19.9 degrees. The average rainfall is approximately 38.2 inches per year, with 10.7 inches of snow per year.
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