The Northbrook School District 27 district serves all or some of: Northbrook. Northbrook School District 27 currently has 12 single family homes for sale with an average list price of $777,815.83, 6 townhouses for sale with an average list price of $528,498.33, and 9 condos for sale with an average list price of $299,311.11 that attend the district. The average annual property tax for Northbrook School District 27 is $10,204.05.