The Northbrook School District 27 district serves all or some of: Northbrook. Northbrook School District 27 currently has 20 single family homes for sale with an average list price of $1,089,325, 5 townhouses for sale with an average list price of $690,600, 14 condos for sale with an average list price of $326,370.71, and 1 lot for sale with a list price of $569,000 that attend the district. The average annual property tax for Northbrook School District 27 is $10,594.05.