Oswego had 13 sales during the week of Tuesday, September 29 to Monday, October 5, including including 10 single family homes for sale with an average list price of $508,558.20, 2 townhouses for sale with an average list price of $312,500, and 1 condo for sale with a list price of $329,900. For anyone looking for a brand new home, there are 4 new construction homes for sale.