Greater Houston's religious community is predominantly Christian and the second-largest metropolitan area that identifies with the religion in Texas after Dallas–Fort Worth (73%). In 2012, the city of Houston proper ranked the ninth most religious city in the U.S. Within the Greater Houston metropolitan area, the Catholic Church is the largest single Christian denomination. Catholics in Houston are primarily served by the Roman Catholic Archdiocese of Galveston–Houston. Following, the body of Evangelical Protestantism was the second largest. Baptists dominated the Evangelical Protestant demographic. Mainline Protestantism, led by Methodists, was the third largest Christian group. Non-Christian religions collectively made up 7% of the religious metropolitan population. The largest non-Christian religion was Judaism. According to the study, 20% of Greater Houston was irreligious and 2% were atheist.