O'Fallon, IL Real Estate and Homes for Sale

O'Fallon, Illinois is located in St. Clair County. O'Fallon is a suburban community with a population of 28,433. The median household income is $75,048. In O'Fallon, 55% of residents are married, and families with children reside in 38% of the households. Half the population of O'Fallon commutes 20 minutes or less to work, with 31% of residents holding white collar jobs and 69% residents holding blue collar jobs. The median age of homes in O'Fallon, IL is 18 years, with 65% of those homes owned, 29% rented, and 6% not occupied. In the previous year, 516 O'Fallon properties were sold. The median sale price of a home in O'Fallon in the previous year was $193,126.

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