Oswego had 20 sales during the week of Tuesday, August 18 to Monday, August 24, including including 16 single family homes for sale with an average list price of $513,122.38, 3 townhouses for sale with an average list price of $353,326.67, and 1 condo for sale with a list price of $400,000. For anyone looking for a brand new home, there are 9 new construction homes for sale.