In Obererlinsbach, 324 or 46.9% were Roman Catholic, while 219 or 31.7% belonged to the Swiss Reformed Church. Of the rest of the population, there were 2 members of an Orthodox church (or about 0.29% of the population), there were 3 individuals (or about 0.43% of the population) who belonged to the Christian Catholic Church, and there were 28 individuals (or about 4.05% of the population) who belonged to another Christian church. There were 16 (or about 2.32% of the population) who were Islamic. There were 5 individuals who were Hindu. 91 (or about 13.17% of the population) belonged to no church, are agnostic or atheist, and 3 individuals (or about 0.43% of the population) did not answer the question.
