Open Datasets by Topic

CESSDA provides large-scale, integrated and sustainable data services to the social sciences. It brings together social science data archives across Europe, with the aim of promoting the results of social science research and supporting national and international research and cooperation.

Register for account to download datasets.

A pan-African series of national public attitude surveys on democracy, governance, and society

Established in 1992 with the purpose of giving public opinion a greater voice in international relations. PIPA conducts in-depth studies of public opinion that include polls, focus groups and interviews.

A crowd-sourced repository for valuable government data

The Harvard Dataverse Repository is a free data repository open to all researchers from any discipline, both inside and outside of the Harvard community, where you can share, archive, cite, access, and explore research data. Each individual Dataverse collection is a customizable collection of datasets (or a virtual repository) for organizing, managing, and showcasing datasets.

The open source web application designed for sharing, preserving and using research data. UCLA Dataverse will allow data, text, software, scripts, data visualizations, etc., created from research projects at UCLA to be made publicly available, widely discoverable, linkable, and ultimately, reusable.

Leading up to the annual release of new datasets, the Census Bureau publishes a schedule, notes about new estimates or new guidance, and technical information about geography and product changes.

Even though this is a statistics site, it is also a portal to datasets.
Principal U.S. Federal Statistical Agencies
U.S. State Labor Market Information Agencies
International Statistical Organizations
National Statistical Agencies of Other Countries