Originally found on Pollster & direct source at Gallup

A new Gallup Values and Belief national survey of 1,003 adults (conducted 5/10 through 5/13) finds:

49% of Americans consider themselves “pro-choice,” 45% say “pro-life.”
56% say abortions should be “legal under certain circumstances,” 26% say “legal under any,” and 18% say “illegal in all.”
53% would not like to see Roe v. Wade overturned; 35% would.

Another way to look at this, however, is that relatively few Americans are positioned at either extreme of the spectrum of beliefs — saying abortion should be legal in either all cirumstances (26%) or illegal in all circumstances (18%). The majority falls somewhere in the middle.

There is interesting historic data in the survey showing attitudes have always consistently been in the middle for the country.