The Niles Elementary School District 71 district serves all or some of: Niles. Niles Elementary School District 71 currently has 4 single family homes for sale with an average list price of $480,979.25 and 7 condos for sale with an average list price of $323,971.43 that attend the district. The average annual property tax for Niles Elementary School District 71 is $5,201.81.