IPUMS-USA 1790-1840 Household-Level Full Count Data: Version 1.0

The IPUMS-USA 1790-1840 Full Count Data is available as household-level and county-level datasets for each decennial census year and for the combined years, 1790-1840. This data was made available to researchers through IPUMS from our collaboration with Ancestry.com. The U.S. Census data for 1790-1840 consists of household-level data for the United States at the time of enumeration. There is no individual-level data available in these years, and the detail of household data is largely dependent on the particular census year. In contrast to later U.S. censuses, these historical censuses named only the head of the household and tallied household totals attached to that. For this reason, person-level information is not available, and information about total persons can only be tabulated using household totals. All of the years have missing data, and in some cases, whole states are missing. Thus, the household-level microdata does not always match the published county-level totals. To help identify the missing areas and other issues in the data, county-level summary data is also available. Each county-level variable gives the total from published figures for that county. The data can be merged onto the household-level data files using YEAR, STATEICP, and COUNTY. The county-level datasets are from the ICPSR Study 2896, Part 1-6, which is also available via IPUMS NHGIS