The Roper Center maintains an archive of public opinion survey data--including from the National Opinion Research Center (NORC), Gallup, Los Angeles Times Polls, exit polls and others. Includes some non-U.S. data as well. Allows users to search survey questions (iPoll) or download data directly (Roper Express). Users will need to enter their USC email address to access data.
Regional “barometer” surveys, in general, look at the social, political and economic atmosphere in various countries—often including opinions on democracy. Generally, these surveys are given annually or in waves to nationally representative samples of adults; however, methodology, scope, content, and availability may vary.