Here is our list of raw data sources for the United States. It is by no means complete, but there are some very interesting things in here.
- 2005 Second Edition TIGER/Line (raw line/polygon census data)
- National Geophysical Data Center (NOAA:NGDC)
- 2000 US Census Summary Files
- US Board on Geographic Names (One of the Geonames.org original sources)
- FAA’s Database of Airports, Airways and More
- Rough Coordinates for all 50 States
- State boundary definitions (outlines)
- Census boundary definitions (zip codes and school, county, voting and legislative districts)
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