Skip to main content

Government Open Data Portals

Millions of public domain datasets. No limits. No restrictions. 100% free.

Public Domain: All government data listed here is public domain or openly licensed. Use it for any purpose - personal, commercial, or academic - with no restrictions.

United States

data.gov - US Federal Data Portal

The home of U.S. Government open data with 250,000+ datasets from all federal agencies.

Popular Categories:
  • Climate and weather data
  • Health and medicine
  • Education statistics
  • Crime and safety data
Key Features:
  • Direct downloads (CSV, JSON, XML)
  • API access available
  • No registration required
  • Updated regularly
Public Domain 250,000+ Datasets No Restrictions

US Census Bureau

Demographic, economic, and geographic data about the US population and economy.

Public Domain Population Data Economic Data

NOAA Climate Data

Weather and climate data including historical records, real-time observations, and forecasts.

Public Domain Weather Data Climate Records

European Union

EU Open Data Portal

Access to open data from all EU institutions and bodies. Over 1 million datasets available.

Includes data from:
  • All 27 EU member states
  • European Central Bank
  • Eurostat (statistics office)
  • European Environment Agency
Open License 1M+ Datasets Multiple Languages

Frequently Asked Questions

Can I use government data for commercial purposes?

Yes! Government data is typically public domain (especially US federal data) or released under open licenses that allow commercial use. Always check the specific license, but 99% of government data is free to use for any purpose.

Do I need to cite the source?

While not always legally required for public domain data, it's good practice to cite your sources. A simple "Source: data.gov" or similar attribution is usually sufficient.

What formats are available?

Most government portals offer data in multiple formats including CSV, JSON, XML, and Excel. Many also provide API access for real-time data retrieval.

How current is the data?

Update frequency varies by dataset. Economic indicators might update monthly, census data annually, while some real-time feeds (like weather) update continuously. Check individual datasets for update schedules.