IPUMS International (Integrated Public Use Microdata Series, International)
IPUMS-International is a project dedicated to collecting and distributing census data from around the world.
"Access to the documentation is freely available without restriction; however, users must apply for access to the data. The application system requires a description of an applicant's proposed research, and asks for the user's institutional affiliation and other information to verify identity. Every application is individually reviewed by project staff. We may ask for additional information if we are uncertain about the suitability of the intended research. Applicants are required to agree to a number of conditions to use the data. Access to the system enables a user to extract data from any country in the database. To apply for access go here."