 25 (or about 5.12% of the population) belonged to no church, are agnostic or atheist, and 17 individuals (or about 3.48% of the population) did not answer the question.In Collonges about 183 or (37.5%) of the population have completed non-mandatory upper secondary education, and 29 or (5.9%) have completed additional higher education (either university or a "Fachhochschule").Of the 29 who completed tertiary schooling, 72.4% were Swiss men, 17.2% were Swiss women.