A slight majority of Americans are satisfied with the influence of organized religion in the U.S., according to a Gallup poll. Vermont, New Hampshire, Maine, and Massachusetts are the least religious states. The decline in church membership is steepest among Catholics, who, according to a Gallup poll last month, are questioning their commitment to the church amid the ongoing sex abuse scandals. In 2008, when Gallup first calculated these state rankings, 59% of Mississippi residents were very religious -- the same as today, although this percentage has fluctuated some over the past nine years. Some individual states exceed that level, and no state falls below 76% in attachment to Christianity. The largest religion in Europe is Christianity , [1] but irreligion and practical secularization are strong. Tags: Catholic , Clergy , Gallup Poll , sex-abuse World Religion News Mississippi has extended its eight-year streak as the most religious state, followed by neighboring Alabama. These results were taken from Gallup's Daily interviews which were held in 2014. In addition, the survey found that among all states, Mississippi is the most religious, while Vermont and New Hampshire rank as the least religious. Welcome, Guest. Learn about the biggest factor in your organization's success. All Gallup articles on Religion. And religion, he said, could very well be a part of that. Religion by State. The Gallup study was based on telephone interviews of American adults from all 50 states and the District of Columbia. The researchers at Gallup have conducted a new poll aimed at showing the U.S. states and the percentage of their church attendance.. Vermont was the least religious state, even in the secular New England region, with 21 percent of the … October-December 2016. Mississippi is the most religious state in the nation for the ninth straight year. The large data set of interviews conducted as part of the Gallup Poll Daily tracking program in 2008 provides uniquely reliable estimates of state-level characteristics. According to Gallup polls that were conducted during the 1950s, more than 90 percent of America’s adult population associated with Christianity and … "After all, New Hampshire is a swing state and Alaska is just its own thing."