Free and open access to global development data.

These tools and datasets provides easy access to an extensive repository of standardized and structured statistical data. The Data-Planet repository for example, contains more than 90 billion data points from more than 70 source organizations.

Provides access to data about the United States, Puerto Rico and the Island Areas. The data in American FactFinder come from several censuses and surveys.

The ProQuest Statistical Abstract of the United States is the authoritative and comprehensive summary of statistics on the social, political, and economic conditions of the United States.

Includes data on income, poverty, housing, population, and industry statistics.

The GSS contains a standard 'core' of demographic, behavioral, and attitudinal questions, plus topics of special interest. Many of the core questions have remained unchanged since 1972 to facilitate time-trend studies as well as replication of earlier findings. The GSS takes the pulse of America, and is a unique and valuable resource. It has tracked the opinions of Americans over the last four decades.

ANES conducts national surveys of the American electorate and conducts development work through pilot studies. Time Series Studies are conducted during years of national elections. In presidential election years, the study is typically conducted both before and after the election (that is, a pre-election survey and a post-election survey), while for congressional election years the study has typically been conducted only after the election (a post-election survey)

The MPC develops demographic data resources. All MPC data are available free over the internet.

Add Health is a longitudinal study of a nationally representative sample of adolescents in grades 7-12 in the United States during the 1994-95 school year. The Add Health cohort has been followed into young adulthood with four in-home interviews, the most recent in 2008, when the sample was aged 24-32*.

The National Longitudinal Surveys (NLS) are a set of surveys designed to gather information at multiple points in time on the labor market activities and other significant life events of several groups of men and women over the last 4 decades.

PSID is the longest running longitudinal household survey in the world. The study began in 1968 with a nationally representative sample of over 18,000 individuals living in 5,000 families in the United States.

Founded in 1949 at Yale University, the Human Relations Area Files, Inc. (HRAF) is an internationally recognized organization in the field of cultural anthropology. HRAF's mission is to encourage and facilitate the cross-cultural study of human culture, society, and behavior in the past and present.

World Values Survey (WVS) is a global research project that explores people’s values and beliefs, their stability or change over time and their impact on social and political development of the societies in different countries of the world.

The Justice Atlas is a corrections data driven, interactive mapping tool.