Roper Center Data HighlightsThe Roper Center archive consists of over 20,000 datasets from public opinion surveys dating back to the 1930s. Approximately 60% of these were conducted in the United States. These studies cover a vast variety of topics including elections and politics, social issues, finances and the economy, education, health, international affairs, social movements and change, and historical events. State-level datasets are also available, including large collections from California, Connecticut, Iowa, Minnesota, New York, and Texas. The Roper Center’s collection provides opportunities for researchers to conduct detailed secondary analysis to discover new insights years after the original survey was released.