Content last reviewed:
Available Online:
United States open data
- Data.gov (can find data by state, county, city, etc.)
- GeoPlatform (geospatial data from US federal government agencies)
- NHGIS ("free of charge, aggregate census data and GIS-compatible boundary files for the United States between 1790 and 2014")
Major US Cities open data
- Austin
- Baltimore
- Boston
- Charlotte
- Chicago
- Columbus
- Dallas
- Denver
- Detroit
- Houston (GIS data only)
- Los Angeles
- Nashville
- New Orleans
- New York
- Philadelphia
- Phoenix
- San Antonio (GIS data only)
- San Diego
- San Francisco
- Seattle
- Washington, D.C.
International open data portals
- ArcGIS Open Data (GIS data only)
- GéoSénégal
- Diva-gis.org (GIS data only)
- European Data Portal
- European Union Open Data Portal
- Google Public Data Directory
- OECD (Organisation for Economic Co-operation and Development)
- OpenDataSoft - "comprehensive list of 2600+ Open Data portals around the world"; seems to be updated regularly (June 2022)
- Open Data sites (from Data.gov) - excellent list of open data sites from around the globe
- Open Data for Africa
- OS Open Data - GIS data from the United Kingdom's Ordnance Survey
- Research Data Australia - "Find, access, and re-use data for research - from over one hundred Australian research organisations, government agencies, and cultural institutions" and includes a Map Search option
- United Nations Development Programme Transparency Portal
- UNdata (United Nations open data; data partners include World Health Organization, International Monetary Fund, World Bank, Food and Agriculture Organization, etc.)
- World Bank
- World Council on City Data
Major International cities open data (no option for English unless noted)
This is not an exhaustive list. Also check to see if the country in which the city is located has an open data site (just Google the name of the city and "open data"), or have a look at World Council on City Data.
- Amsterdam, Netherlands
- Barcelona, Spain (English)
- Berlin, Germany
- Brussels, Belgium (English)
- Buenos Aires, Argentina
- Dublin, Ireland (English, unfortunately without the accent)
- Helsinki, Finland (English)
- Hong Kong (English) - no GIS datasets as of May 11, 2015
- London, UK (English, obviously)
- Madrid, Spain
- Melbourne, Australia (English)
- Munich, Germany (English)
- Paris, France
- Rome, Italy
- Singapore (English)
- Stockholm, Sweden
- Taipei, Taiwan
- Vienna, Austria
- Zurich, Switzerland
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