Ten percent of Protestants, 21 percent of Roman Catholics, and 52 percent of Jews do NOT believe in God.

That’s the surprising word from a new survey by Harris Interactive of 2,306 adults that shows belief in God varies quite widely among different segments of the American public. How often do we go to a place of worship? Not much. Most people attend a religious service less than once a month. Still, Americans are far more likely to believe in God and to attend religious services than people in most other developed countries, particularly in Europe.

Who believes in God?

While 79 percent of Americans believe there is a God, only 66 percent are absolutely certain of it. Nine percent do not believe in God and 12 percent aren’t sure. And weirdly, not everyone who calls himself or herself a Christian or a Jew actually believes in God.

Who worships at a religious service?

Just over half (55 percent) attend a religious service a few times a year or more. Thirty-six percent attend once a month or more often, and just 26 percent say they attend every week. Forty-one percent of women and 31 percent of men attend once a month or more. Protestants (47 percent) are more likely to go to church once a month or more often than are Roman Catholics (35 percent). Jews are least likely to go with 16 percent saying they go to synagogue once a month or more. Church attendance is highest in the Midwest and lowest in the West.

Belief in God by geography and age

Eighty-two percent of Midwesterners and Southerners believe in God, compared with 75 percent in the East and West. Our beliefs get stronger as we age. Of those 25 to 29 years old, 71 percent believe in God. That number jumps to 80 percent for people over 40, and hits 83 percent for those 65 and over.

Other fascinating facts about who believes in God:

84 percent of women believe in God, compared with 73 percent of men.

91 percent of African Americans believe in God, compared with 81 percent of Hispanics and 78 percent of whites.

87 percent of Republicans believe in God, compared with 78 percent of Democrats and 75 percent of Independents.

82 percent of those with no college education believe in God, compared with 73 percent who went to college.