In 2011 there were 5,726 (18.4%) Roman Catholic, 5,560 (17.9%) Hungarian Reformed (Calvinist), 606 (2.0%) Orthodox and 507 (1.6%) Lutheran in Gyula. 8,304 people (26.7%) were irreligious and 453 (1.5%) Atheist, while 9,012 people (29.0%) did not declare their religion.[1]