The 1920 census was carried out in the United States through the functions of the Census Bureau. As such, the census of 1920 was the fourteenth to be carried out in the country. The results of the 1920 census, upon being fully tabulated, revealed the United States to then have, as far as was discernible to the Census workers, a population of 106,021,537 people. In historical terms, the census of 1920 is today noted for several different features which set it apart from those which were conducted before and after it.
One unique feature of the 1920 census, as was noted by the Census Bureau at the time, was that it indicated the rate of immigration into the country decreasing from the levels which had been found in previous years and censuses.
In this respect, the census of 1920 showed that the U.S. population had increased by 15% in comparison with the same figures as had been collected in the 1910 survey, which, by contrast, had found that the population had increased by more than 20% between the point when it was taken and the previous, 1900-conducted survey.
The U.S. population had increased at a comparable rate between that census and the 1890 population survey. In addition to these statistical revelations, the census of 1920 was also set apart by how the results it returned were applied, or, rather, how they were not applied. In this respect, the 1920 census did not lead to the Constitutionally-mandated House of Representatives redistricting.