 42 (or about 3.04% of the population) belonged to no church, are agnostic or atheist, and 66 individuals (or about 4.78% of the population) did not answer the question.In St. Stephan about 50.8% of the population have completed non-mandatory upper secondary education, and 9.3% have completed additional higher education (either university or a "Fachhochschule").Of the 72 who had completed some form of tertiary schooling listed in the census, 72.2% were Swiss men, 22.2% were Swiss women.