Search over 30 UN statistical databases in one place. Also includes portal of links to official country data services from around the world.

The Varieties of Democracy Project (V-Dem) is an ambitious international effort to produce new indicators of democracy for all countries since 1900. With measures of democracy in great demand, V-Dem provides the global community with the world’s most comprehensive, accurate, and detailed democracy ratings.

The data.census.gov site provides easy to access to aggregate data on population, housing, economic and geographic information from several censuses and surveys.

Allows users to view every congressional roll call vote in American history on a map of the United States and on a liberal-conservative ideological map including information about the ideological positions of voting Senators and Representatives.

A comprehensive databank of information on U.S. states, including a short summary introducing the state. In the ‘State Profile’ view you can find out information like who the state’s Governor is, who controls what parts of the state’s government, and information on state policies like marijuana legalisation, and even the state’s credit rating.

Collects and organizes data from various archived sources to trace changes in the national policy agenda and public policy outcomes of the United States since the Second World War.

A joint effort of multiple high-profile academic research institutions, the ANES produced data on voting, public opinion, and political participation.

For five decades, the General Social Survey (GSS) has studied the growing complexity of American society and is designed to monitor changes in both social characteristics and attitudes in the United States.