Current Population Survey microdata including basic monthly surveys and supplements from 1962 to the present.
Census microdata covering 82 countries from 1960 to the present. IPUMS NAPP offers microdata from the 19th and early 20th centuries.
Demographic and Health Surveys integrated for analysis across time and space from the 1980s to the present.
IPUMS is offering harmonized versions of two important youth health surveys: the National Youth Tobacco Survey (NYTS) and the Youth Risk Behavior Surveillance System (YRBSS). This work was done in collaboration with NORC at the University of Chicago and with funding from the Food and Drug Administration Center for Tobacco Products. Funding did not include a dissemination system, but IPUMS and NORC did not want this valuable work to be lost, so interested researchers may download a single file for each dataset that harmonizes all variables and contains all available years of data (as of June 2017).