Poll: 20% believe Obama was born outside the U.S.

Overall, when asked “where was Obama born, as far as you know?” 80% of adults say they believe Obama was born in the United States, while 20% said that he was born outside the country. And just 9% of those who think he was born elsewhere believe there is solid evidence of that; the other 11% say it is just their suspicion.

Misperceptions about Obama’s religious beliefs are more common than those about his birth, particularly among Republicans. Overall, 29% of Americans say they think the President is a Muslim, including 43% of Republicans.

The findings suggest beliefs about Obama’s birth are remarkably stable: When ABC News and the Washington Post asked this question in the same way in April 2010, 77% of adults said Obama was born in the United States, 20% said in another country, with just 9% saying there was solid evidence Obama was not born in the United States.