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The upper class in the United States is a small, exclusive group that occupies the highest levels of status and prestige. For some, membership in the upper class is relatively recent, acquired through personal financial achievement. These families are usually headed by high-level executives in large corporations and highly compensated lawyers, doctors, scientists, entertainers, and professional athletes. Such individuals may have been born into poor, working-class, or middle-class families, but they have been able to climb the social ladder and create a comfortable life.