 There were 10 (or about 2.47% of the population) who were Islamic.57 (or about 14.07% of the population) belonged to no church, are agnostic or atheist, and 3 individuals (or about 0.74% of the population) did not answer the question.In Oltingen about 165 or (40.7%) of the population have completed non-mandatory upper secondary education, and 49 or (12.1%) have completed additional higher education (either university or a "Fachhochschule").