How to access Pew Research Center survey data | Pew Research Center

"Pew Research Center regularly makes the full datasets behind our survey reports available to the public for free. In this post, we’ll explain exactly how you can download these datasets and begin to analyze our survey findings yourself.

We typically do not publish datasets at the same time as we publish reports, and the lag time varies by study. That’s because it takes some time for us to complete all of our own reporting for a given study and to prepare the data for public release. We “clean” our survey datasets in this way to make them easier to use and to remove any information that could be used to identify individual poll respondents. Protecting confidentiality also means we never release some datasets of rare populations (for instance, surveys of scientists or foreign policy experts)...."