 Virginia is predominantly Christian and Protestant ; Baptists are the largest single group with 27 % of the population as of 2008 . Baptist congregations in Virginia have 763 @,@ 655 members . Baptist denominational groups in Virginia include the Baptist General Association of Virginia , with about 1 @,@ 400 member churches , which supports both the Southern Baptist Convention and the moderate Cooperative Baptist Fellowship ; and the Southern Baptist Conservatives of Virginia with more than 500 affiliated churches , which supports the Southern Baptist Convention . Roman Catholics are the second @-@ largest religious group with 673 @,@ 853 members . The Roman Catholic Diocese of Arlington includes most of Northern Virginia 's Catholic churches , while the Diocese of Richmond covers the rest . 
