The Northbrook School District 27 district serves all or some of: Northbrook. Northbrook School District 27 currently has 10 single family homes for sale with an average list price of $821,879, 2 townhouses for sale with an average list price of $664,500, and 7 condos for sale with an average list price of $262,700 that attend the district. The average annual property tax for Northbrook School District 27 is $10,162.88.