 121 (or about 15.16% of the population) belonged to no church, are agnostic or atheist, and 19 individuals (or about 2.38% of the population) did not answer the question.In Giebenach about 384 or (48.1%) of the population have completed non-mandatory upper secondary education, and 111 or (13.9%) have completed additional higher education (either university or a "Fachhochschule").Of the 111 who completed tertiary schooling, 56.8% were Swiss men, 27.0% were Swiss women, 7.2% were non-Swiss men and 9.0% were non-Swiss women.