Nutmeg,

Sometimes they include high achievers in the gifted class to have similar teacher student ratio with other class. But beileve it or not, there will be discrepant concentration of gifies. In our districts, some schools have less than 5% but some have about 18% (in better SE neighborhoods). BTW, it is published in the distict website.

And one HS has about 8% of seniors are NMS finalists or National Hispanic Scholars (48/586) and one HS has only 1 NHS out of >600 seniors.