About nine in 10 Americans say they believe in God, and one in 10 say they do not. However, when presented with more than a “yes or no” option, about eight in 10 say they believe and one in 10 say they aren’t sure. Belief in God, regardless of how the question is phrased to Americans, is down from levels in past decades.
Americans’ Belief in God Using Different Question Wording
Yes No No opinion % % % Do you believe in God? 89 10 1 Do you believe in God or a universal spirit? 89 9 2 Gallup, June 14-23, 2016

For each of the following items I am going to read you, please tell me whether it is something you believe in, something you’re not sure about or something you don’t believe in: God.
% Believe in 79 Not sure about 10 Don’t believe in 11 Gallup, May 4-8, 2016

These results are based on several different questions that Gallup has used over the years to ask Americans about their belief in God. The latest results come from surveys conducted May 4-8 and June 14-23.