The River Forest School District 90 district serves all or some of: River Forest. River Forest School District 90 currently has 17 single family homes for sale with an average list price of $1,207,700, 1 townhouse for sale with a list price of $549,900, and 15 condos for sale with an average list price of $325,846.67 that attend the district. The average annual property tax for River Forest School District 90 is $13,506.61.