Rankings and lists focusing on wealth, prestige, or exclusivity often get cited in discussions about "snobby" schools, but these are not measures of snobbery itself. Schools with high acceptance rates, strong academic programs, and affluent student bodies might be perceived as snobby by some, even if the students and staff are not intentionally trying to cultivate an elitist atmosphere.
Therefore, it's impossible to objectively name the "snobbiest" high school. Such a claim would be based on opinion and anecdotal evidence, not verifiable data.