Antiques in Oswego, IllinoisList of Companies in Antiques category in the city of Oswego, Illinois.Share this page: Oswego Antique Market Oswego, Antiques; 76 S Main St, Oswego, IL, 60543-8594; (630) 554-9779Rejoyce Oswego, Antiques; 76 S Main, Oswego, IL, 60543; (630) 554-29951