According to the 2002 census, 89.9% of the population is Catholic, 6.2% is evangelical Christian, 1.1% is other Christian, 0.6% practice indigenous religions.
A U.S. State Department report on Religious Freedom names Roman Catholicism, Evangelical Christianity, mainline Protestantism, Judaism (Orthodox, Conservative, and Reform), Mormonism, and the Baha'i Faith as prominent religious groups. It also mentions a large Muslim community in Alto Paraná (as a result of Middle-Eastern immigration, especially from Lebanon) and the Mennonite community in Boquerón
