Pew Research reports:

A Wider Ideological Gap Between More and Less Educated Adults

Political polarization update

Two years ago, Pew Research Center found that Republicans and Democrats were more divided along ideological lines than at any point in the previous two decades. But growing ideological distance is not confined to partisanship. There are also growing ideological divisions along educational and generational lines.

4-22-2016_01Highly educated adults – particularly those who have attended graduate school – are far more likely than those with less education to take predominantly liberal positions across a range of political values. And these differences have increased over the past two decades.

More than half of those with postgraduate experience (54%) have either consistently liberal political values (31%) or mostly liberal values (23%), based on an analysis of their opinions about the role and performance of government, social issues, the environment and other topics. Fewer than half as many postgrads – roughly 12% of the public in 2015– have either consistently conservative (10%) or mostly conservative (14%) values. About one-in-five (22%) express a mix of liberal and conservative opinions.

Among adults who have completed college but have not attended graduate school (approximately 16% of the public), 44% have consistently or mostly liberal political values, while 29% have at least mostly conservative values; 27% have mixed ideological views.

By contrast, among the majority of adults who do not have a college degree (72% of the public in 2015), far fewer express liberal opinions. About a third of those who have some college experience but do not have a bachelor’s degree (36%) have consistently liberal or mostly liberal political values, as do just 26% of those with no more than a high school degree. Roughly a quarter in each of these groups (28% of those with some college experience, 26% of those with no more than a high school education) have consistently conservative or mostly conservative values.

….. See