Women are more likely to be religious, and among atheists, women are the minority, according to recent data from the Pew Research Center.
The first two of these three graphics are based upon surveys of men and women, ages 20 or older, in 192 countries:
Women make up the majority of Christians, Jews, Buddhists, and an unidentified selection of smaller religious groups:
The United States is sometimes maligned as a religious, patriarchal nation. To the maligners: Why are so many patriarchs atheists and so many matriarchs believers? No one in the U.S. makes a free adult get out of bed on a Sunday morning, and no one makes a free adult hold faith-in-a-higher-power as a background belief. See the graphic below, and consider the population numbers and cultural diversity represented by the listed nations: