A home address can act like an admissions credential
In many U.S. districts, a child’s ordinary public-school assignment depends largely on where the family lives. A boundary line on a map can therefore determine which school a child may attend without an application or tuition payment. When families compete for homes inside a sought-after attendance area, access to that school becomes part of what they are bidding for.
Why prices can do the excluding
If homes in the area are scarce, rising demand can push sale prices and rents beyond what lower-income households can afford. The school itself has not formally barred those families; the cost of living within its boundary has. Zoning and other limits on building can intensify the squeeze by making it harder for new, less expensive housing to enter the market.
The result is a sorting process: households with more money have more choices about where to live, while families with fewer resources may be confined to a narrower set of neighborhoods and school assignments. This can concentrate advantage even when enrollment rules are formally based on residence rather than wealth.
The boundary shapes more than a commute
School quality reflects many factors, and funding systems differ from place to place; a wealthy neighborhood does not automatically guarantee a better school. But where school access, housing costs, and local resources reinforce one another, the address-based system can preserve unequal opportunity without requiring an explicit rule that excludes poorer students. A map boundary becomes powerful because the homes on one side of it are affordable to some families and out of reach for others.
