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 $1,012,899, 3 townhouses for sale with an average list price of $624,633.33, 6 condos for sale with an average list price of $265,900, and 1 lot for sale with a list price of $379,500 that attend the district. The average annual property tax for Northbrook School District 27 is $10,653.31.