The Northbrook School District 27 district serves all or some of: Northbrook. Northbrook School District 27 currently has 17 single family homes for sale with an average list price of $1,099,970.59, 4 townhouses for sale with an average list price of $688,250, 12 condos for sale with an average list price of $338,324.17, and 1 lot for sale with a list price of $599,000 that attend the district. The average annual property tax for Northbrook School District 27 is $10,559.45.