<p>While I agree with Garland on the reasons why the top rated schools may limit the range of kids a kid is exposed to, I don’t put quite as much stock into the zip code theory. Yes, my town has an average household income that is at least half of the two neighboring towns, within our single zipcode there are both million dollar homes and public housing. My kids are not disadvantaged in anyway, and I would hope that they don’t get too many brownie points for rubbing shoulders with kids who are both more disadvantaged than they are.</p>