The American National Election Studies (ANES) produces high quality data on voting, public opinion, and political participation to serve the research needs of social scientists, teachers, students, policy makers and journalists who want to better understand the theoretical and empirical foundations of national election outcomes.
ICPSR is a social science repository that includes curated data sets pertaining to many disciplines within the social sciences. ICPSR contains original codebooks and descriptions of methodology, offers multiple file format downloads, and links data to relevant scholarly research. Users can search at the variable level and trace datasets to their use in academic publications. The archive also includes data-driven learning guides for those teaching with data.
Information on reported voting and registration by various demographic and socioeconomic characteristics is collected for the nation in November of Congressional and Presidential election years in the Current Population Survey (CPS), a monthly survey of about 50,000 households.
The Atlas is an internet resource providing results of U.S. Presidential Elections to the world community. Data is collected from many official sources. Note that this link directs users to Data-Planet, which contains much of the data.
Through its website the PDBA offers centralized and systematized information about institutions and political processes, national constitutions, branches of government, elections, political constitutional studies and other subjects related to the strengthening of democracy in the Americas. The full text of constitutions, election results, and rosters of political leaders (past and present) are available here.
The aim of this website is to archive, maintain, and distribute datasets of roll-call voting from legislative bodies throughout the international community.