ZD,
Clarkstown is a separate School District. You’ve excluded Spring Valley, which is mixed, Hillcrest, Chestnut Ridge, Pomona and some others as well.
A number of the actual Public Schools are right in the middle of mostly Frum areas, such as Lime Kiln School, Ramapo High, Kakiat, Grandview, Early Childhood Center, Hempstead Elementary.
Elmwood is right around Frum areas, but very much a mixed crowd living in the area, it is more in a commercial area, between neighborhoods.