Gallup has a poll on evolution and creation here. The opening paragraph sets the tone of the article:
PRINCETON, NJ -- The majority of Republicans in the United States do not believe the theory of evolution is true and do not believe that humans evolved over millions of years from less advanced forms of life. This suggests that when three Republican presidential candidates at a May debate stated they did not believe in evolution, they were generally in sync with the bulk of the rank-and-file Republicans whose nomination they are seeking to obtain.
The poll is heavily oriented toward the idea that humans did or did not evolve--presumably to spark a more visceral response from those questioned. This is, in fact, admitted later in the article. After all, evolution is okay as long as it happens over there. The other paragraph that struck me was this one, in which the stellar record of science education in this country is put on spectacular display:
It might seem contradictory to believe that humans were created in their present form at one time within the past 10,000 years and at the same time believe that humans developed over millions of years from less advanced forms of life. But, based on an analysis of the two side-by-side questions asked this month about evolution and creationism, it appears that a substantial number of Americans hold these conflicting views.