CIA World Factbook
- Basic country information like GDP, population, etc.
INEGI
- This is a direct link to basic data from the 2000 Mexican census
- You need to figure out a bit of Spanish terms to use it
- Contains Statistical Information
- Datasets and other Latin American development information free for scholarly and educational purposes
- Guide to finding elections information
- Public opinion research center from Vanderbilt University
- Most information on this site costs money but there are some free documents
- A wide range of information on the countries of the world, including official national and regional government resources, maps and statistics
- Indicators from 20 countries covering 1900-2000
Pew Hispanic Center: comprehensive information on the US Hispanic population, including recent immigration trends and public opinion about immigration.
- Provides reference materials, primary documents, comparative studies and statistical data for countries in the Western Hemisphere
- Free database of stats from the United Nations
Economic Commission for Latin America (ECLA)
Facts and Statistics by Country
From official government websites, in Spanish (Portuguese for Brazil)