Baby boomers
Existing nationally representative polls such as Pew and Gallup indicate atheist prevalence is relatively low (3% -11%) in the United States, however, in one study using validated unmatched counting interviewing technique, in which people did not need to "admit" explicitly to a certain position, the number of people who did not believe in a god was indirectly estimated to be 26% overall. The authors noted that 26% of Baby boomers and millennials did not have belief in a god.