United States

CDC WONDER

The CDC Wide-ranging ONline Data for Epidemiologic Research (CDC WONDER) is a directory of databases related to health, which includes data on AIDS, birth, cancer, environment, mortality, population as well as morbidity and mortality tables.

IPUMS NHGIS

Contains aggregate census data and GIS files for the U.S. from 1790 to the present. Topics include general population characteristics, economic indicators, buildings, agriculture, and social environment indicators.