Resources A-Z

The Integrated Public Use Microdata Series (IPUMS) is an online database of microdata from 79 countries (2015) for international social and economic research, created and maintained by the Minnesota Population Center. Source data is provided by participating National Statistical Offices. The data are coded and documented consistently across countries and over time to facillitate comparative research.   The data are available to qualified researchers free of charge through a web dissemination system.

IPUMS Terra (previously known as TerraPop) is an online, open access database that provides users with global-scale data on human population characteristics, land use, land cover, climate, and other environmental characteristics. IPUMS Terra also provides tools for integrating, analyzing and visualizing data that have spatial and temporal dimensions.  

The Integrated Public Use Microdata Series (IPUMS-USA) is an online, openly accessible resource of more than fifty samples of the American population drawn from fifteen federal censuses and from the American Community Surveys of 2000-present. IPUMS-USA is composed of microdata and includes a data extraction system that enables users to select the samples and variables they require. 

The North Atlantic Population Project (NAPP) is a machine-readable, opne access database of the complete censuses of Canada (1881), Denmark (1787, 1801), Great Britain (1881, 1911), Norway (1801, 1865, 1900, 1910), Sweden (1880, 1890, 1900), the United States (1880) and Iceland (1703, 1729, 1801, 1901, 1910). Samples of census data are also available for Canada (1852, 1871, 1891, 1901, 1911), Great Britain (1851), the German state of Mecklenburg-Schwerin (1819), Norway (1875), and the United States (1850, 1860, 1870, 1900, 1910), which support cross-temporal analyses.