The 1900 United States census, conducted by the Census Office on June 1, 1900, determined the resident population of the United States to be 76,212,168, an increase of 21.01% from the 62,979,766 persons enumerated during the 1890 census. It was the last census to be conducted before the founding of the permanent United States Census Bureau. The census saw the nation's largest city, New York City, more than double in size due to the consolidation with Brooklyn, becoming in the process the first U.S. city to record a population growth of over three million. Oversight of the statistics was by Frederick Howard Wines and Walter F. Willcox.

Census questions

The 1900 census collected the following information: Full documentation for the 1900 census, including census forms and enumerator instructions, is available from the Integrated Public Use Microdata Series.

Data availability

The original census enumeration sheets were microfilmed by the Census Bureau in the 1940s, after which the original sheets were destroyed. The microfilmed census is available in rolls from the National Archives and Records Administration. Several organizations also host images of the microfilmed census online, and digital indices. Microdata from the 1900 census are freely available through IPUMS. Aggregate data for small areas, together with electronic boundary files, can be downloaded from the National Historical Geographic Information System.

State rankings

City rankings

Locations of 50 most populous cities