About Oswego, IL
Oswego is located in Illinois. Oswego, Illinois has a population of 31,545. Oswego is less family-centric than the surrounding county with 44% households with children. The county percentage for households with children is 44%.
The median household income in Oswego, Illinois is $79,730. The median household income for the surrounding county is $71,312 compared to the national median of $50,013. The median age of people living in Oswego is 36.6 years.
The average high temperature in July is 84.2 degrees, with an average low temperature in January of 10.5 degrees. The annual precipitation is 38.39.
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