#  Survey Data Collections 

 



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- [Harvard-MIT Data Center](https://www.hmdc.harvard.edu/) -- *HMDC is the principal distributor of quantitative social science data from major international data consortia for Harvard and MIT.*
- [Council of European Social Science Data Archives](http://www.nsd.uib.no/cessda/index.html) *CESSDA members include major European social science data archives. Their web page has a clickable [ map ](http://www.nsd.uib.no/cessda/europe.html) of European archives.*
- [European Union Guide to Survey Data Archives and Centers](http://ec.europa.eu/public_opinion/links_en.htm)
- [Inter-University Consortium for Political and Social Research Data Archive](http://www.icpsr.umich.edu/access/index.html) -- *ICPSR supplies data files for use with statistical software, such as SAS, SPSS, and Stata.*
- [Kaiser Network Health Poll Search](http://www.kaisernetwork.org/health_poll/hpoll_index.cfm) – *A free searchable database of question level public opinion data*
- [Odum Institute for Research in Social Science](http://www.irss.unc.edu/odum/jsp/content_node.jsp?nodeid=7) – *The Odum Institute Contains several specialized archives of public opinion data, including many state polls*.
- [Polling the Nations](http://poll.orspub.com.ezp2.harvard.edu/) -- *(Harvard ID / PIN required)*
- [Roper Center for Public Opinion Research](http://www.ropercenter.uconn.edu/) -- *An archive, preserving the data from polls conducted by many leading survey research organizations for the use of researchers, students, and journalists.*
- [Virtual Data Center](http://thedata.org/) -- *An operational, open-source, digital library to enable the sharing of quantitative research data.*