In a survey, Unitarian Universalists in the United States were asked which provided term or set of terms best describe their belief. Many respondents chose more than one term to describe their beliefs. The top choices were: Humanist – 54%, Agnostic – 33%, Earth-centered – 31%, Atheist – 18%, Buddhist – 16.5%, Christian – 13.1%, Pagan – 13.1%

Source: John Dart, ed. Surveys: 'UUism' unique Churchgoers from elsewhere. Christian Century.