A great place to start your search for both popular and scholarly articles on almost any topic. It contains a large number of journals, the majority of which are peer-reviewed, from numerous subject areas and goes as far back as 1865.
Provides U.S. demographic data back to 1790 through data reports and interactive demographic maps that can be viewed, queried, and manipulated on the site.
provides easy access to summary tables and time series of population, housing, agriculture, and economic data, along with GIS-compatible boundary files
Easily download geodata for United States geographies from 1790 to 2019 in the form of shapefiles or other formats. Click on Geodata in the left menu to get started.