Oswego had 18 sales during the week of Tuesday, July 28 to Monday, August 3, including including 13 single family homes for sale with an average list price of $659,450.08, 4 townhouses for sale with an average list price of $347,222.50, and 1 condo for sale with a list price of $325,000. For anyone looking for a brand new home, there are 7 new construction homes for sale.