Atheism
and up to 48% in Russia. The percentage of such people in European Union member states ranges between 6% (Italy) and 85% (Sweden). In the United States, according to Pew and Gallup—two of the most reputable polling firms in America—both conclude that about 10% of Americans say they do not believe in God, and this figure has been slowly creeping up over the decades. The real number is likely higher than this, due to the stigma around atheism.