An international consortium of more than 700 academic institutions and research organizations, ICPSR maintains a data archive of more than 500,000 files of research in the social sciences. It hosts 16 specialized collections of data in education, aging, criminal justice, substance abuse, terrorism, and other fields.

iPoll Databank Contains over half a million of U.S. national public opinion surveys in a variety of topics. Includes questions and answers from over 150 survey organizations. Dates of Coverage: last 70+ years

Statistical Abstract of the United States, published since 1878, is the authoritative and comprehensive summary of statistics on the social, political, and economic organization of the United States. Topic areas include population demographics, vital statistics, education, law enforcement, elections, federal/state/local government finances and employment, national security and veterans affairs, social insurance and human services, labor force, poverty and wealth, business enterprise, science and technology, agriculture and natural resources, energy and utilities, construction and housing, manufactures, wholesale and retail trade, transportation, information and communications, banking and finance, arts and recreation, accommodation and food services, foreign commerce and aid, Puerto Rico and the island areas, and international statistics. Dates of Coverage: 1878 (with some data back to 1789)–2012.

Social Explorer is an online research tool designed to provide quick and easy access to current and historical census data and demographic information. The easy-to-use Web interface lets users create maps and reports to better illustrate, analyze, and understand demography and social change. In addition to being a comprehensive data resource, Social Explorer also offers features and tools to meet the needs of both demography experts and novices. To learn more about Social Explorer, visit https://www.socialexplorer.com/product