Washington Avenue, CliftonClifton City School DistrictGrades: KG - 545School #1158 Park Slope, CliftonClifton City School DistrictGrades: KG - 542Christopher Columbus Middle School350 Piaget Avenue, CliftonClifton City School DistrictGrades: 6 - 839School #17361 Lexington Avenue, CliftonClifton City ...