Public opinion poll data with results from 1935 to the present. Roper iPoll contains nearly 800,000 questions and over 23,000 datasets from both U.S. and international polling firms.

Collection of digital social science data in various formats.

Statistics from the online library of the Organisation for Economic Cooperation and Development, including key tables, searchable data sets, and fact books. All content prior to 2017 is available, and select content after 2017 is available through the "read online" option.

Provides comprehensive summary of statistics on these major topics: Population, Health, Education, Crime, Environment, Government, Human Services, Labor Force, Income, Prices, Business, Science, Agriculture, Energy, Construction, Manufacturing, Trade, Transportation, Information and Communication, Finance, and Arts. The source notes can be used to find more detailed tables and machine-readable datasets.

Discover research data, including data studies, data sets from a wide range of international data repositories and connect them with the scientific literature to track data citation. This is part of Web of Science.

Access qualitative and multi-method research datasets housed at Syracuse University. QDR allows researchers to store and preserve data and provides consultation through their Data Management Plans (DMP). Users will need to create an account in order to download data.

Features demographic research mapping tools that allow for demographic data analysis. The main goal is to visually display the demographic change that has occurred in the U.S. since 1790 through present down to the zip code or a city block level.