I assume niche.com is using household incomes for a specific school’s surrounding neighborhoods, although I cannot attest to how accurate it is compared to actual school boundaries.
I think we might be saying the same thing though, since “right” school generally means a school where a large proportion of the other kids have parents who are throwing a lot of resources at the kids (including the parents’ time and attitudes towards academic learning). It just so happens that this group of parents is higher income, so the easily visible statistic will be neighborhoods with higher income households will have higher academic proficiency percentages in the schools.
I think we might be saying the same thing though, since “right” school generally means a school where a large proportion of the other kids have parents who are throwing a lot of resources at the kids (including the parents’ time and attitudes towards academic learning). It just so happens that this group of parents is higher income, so the easily visible statistic will be neighborhoods with higher income households will have higher academic proficiency percentages in the schools.
There is also this old map:
https://opportunityatlas.org/