Survey Data Collections

Online archives and other centers provide datasets from many existing surveys. In some cases, an institutional subscription is required to access this data while in others this data is freely available to all.

Comparative Study of Electoral Systems

The Comparative Study of Electoral Systems (CSES) is a collaborative program of research among election study teams from around the world. Participating countries include a common module of survey questions in their post-election studies.

ISSP - International Social Survey Program

The ISSP is a continuing annual programme of cross-national collaboration on surveys covering topics important for social science research.

The Dataverse Network

The Dataverse Network Project is an operational, open-source, digital library to enable the sharing of quantitative research data. The IQSS Dataverse Network is available for public use for searching across many publicly archived sources of data.  Many of the data are available for free download, while others require institutional subscriptions.

Polling the Nations

A database of questions and responses to surveys which have been publicly reported. 

Information about institutional or personal subscriptions can be found here: http://www.orspub.com/.

The link below gives Harvard users access to this data under an institutional subscription (Harvard ID / PIN required).

Odum Institute for Research in Social Science

The Odum Institute at the University of North Carolina contains several specialized archives of survey and public opinion data, including many state polls and a collection of polls conducted by Louis Harris and Associates.

Kaiser Network Health Poll Search

A free searchable database of question level public opinion data

Inter-University Consortium for Political and Social Research Data Archive

ICPSR supplies data files for use with statistical software, such as SAS, SPSS, and Stata.
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