This is foreign to me, can you explain it a bit more? Where I live, we have school districts, and inside those districts are boundaries for various schools. You know well before you even buy/rent your home what school boundary that home belongs to.
Sf has a lottery system to avoid all the rich kids at one school, and all the poor kids at another. It’s well motivated but totally impractical from get-kids-to-school-before-work perspective.
Different school districts weight the location of a child's home differently when choosing which school the child should go to. In most districts location is the highest factor. In other places it's a moderate or low factor.