Oswego is located in Illinois. Oswego, Illinois has a population of 34,324. Oswego is more family-centric than the surrounding county with 42.89% of the households containing married families with children. The county average for households married with children is 42.61%.
The median household income in Oswego, Illinois is $106,790. The median household income for the surrounding county is $101,816 compared to the national median of $69,021. The median age of people living in Oswego is 39.3 years.
The average high temperature in July is 83.8 degrees, with an average low temperature in January of 14.8 degrees. The average rainfall is approximately 38.8 inches per year, with 29.6 inches of snow per year.
