Poll: U.S. conservatives outnumber liberals by narrowing margin

Since Gallup began routinely measuring Americans’ political ideology in 1992, conservative identification has varied between 36% and 40%. At the same time, there has been a clear increase in the percentage identifying as politically liberal, from 17% to 25%. This has been accompanied by a corresponding decrease in the percentage identifying as “moderate,” from 43% to 34%.

Moderates were consistently the most prevalent group from 1992 to 2002, before first yielding that designation to conservatives in 2003. Within the long-term stability of conservatism, the percentage of Americans self-identifying as conservative jumped to 40% several times between 2003 and 2011, but it has since returned to 36%.