IPUMS Complete Count Data

Completed Datasets

1880: This dataset was developed through a collaboration between the Minnesota Population Center and the Church of Latter-Day Saints; these complete count data have been available since 2008. Data are available through the North Atlantic Population Project (with names) and IPUMS-USA (without names).

1880 Linked Representative Samples: This database links records from the 1880 complete count dataset to 1% samples of the 1850 to 1930 U.S. Censuses. We have data samples for seven pairs of years: 1850-1880, 1860-1880, 1870-1880, 1880-1900, 1880-1910, 1880-1920, and 1880-1930. Each of these contains three independent linked samples: one of men, one of women, and one of married couples. Go to the Linked Samples page.

Datasets in Progress

1850: The result of a recent collaboration between Minnesota Population Center and the Church of Latter-Day Saints, the 1850 complete count database is under development. The data will be will be released on a rolling, state-by-state basis over the next 9 months. These data, with names, will be available from the North Atlantic Population Project (with 18 states and the District of Columbia available now). When the project is complete, a version without names will be available through the IPUMS-USA extract system.

1940: The 1940 complete count dataset is a major new project at the Minnesota Population Center made possible through a collaboration with Ancestry.com. We are digitizing all variables from the 1940 census of the U.S. and outlying territories, for a total of 134 million persons and 70 variables, including wage and salary income, educational attainment, migration, detailed employment information, and street address. The 1% 1940 IPUMS sample is already updated with some of this information, and more data will be released during the spring of 2014. By March 2017, the IPUMS extract system will contain the complete count 1940 dataset. Investigators seeking advance access to the raw data should contact ipums@umn.edu.

1790-1930: Our largest new microdata collection will capitalize on the donations of an unprecedented scale of digitized census data by both Ancestry.com and FamilySearch. The 1790-1930 microdata include a core set of variables for every census year, including geographic location, age, sex, race, and name. Birthplace information is available in all but a few of the early years, and from 1880 forward the data include marital status, the relationship of each individual to the household head, and the birthplace of each individual's mother and father, allowing the identification of second-generation Americans. Other key variables such as year of immigration, duration of marriage, literacy, occupation, children ever born, children surviving, and disability are available sporadically. The IPUMS will have preliminary data available in late 2014 and continue releasing data until 2018.