of the United States
U.S. Census Bureau Seal
|Date taken||January 5, 1920|
|Most populous state|| New York |
|Least populous state|| Nevada |
The United States Census of 1920, conducted by the Census Bureau one month from January 5, 1920, determined the resident population of the United States to be 106,021,537, an increase of 15.0 percent over the 92,228,496 persons enumerated during the 1910 Census.
Despite the constitutional requirement that House seats be reapportioned to the states respective of their population every ten years according to the census, members of Congress failed to agree on a reapportionment plan following this census, and the distribution of seats from the 1910 census remained in effect until 1933. In 1929, Congress passed the Reapportionment Act of 1929 which provided for a permanent method of reapportionment and fixed the number of Representatives at 435.
This was the first census in which a state – New York – recorded a population of more than ten million.
The 1920 census collected the following information:
Full documentation for the 1920 census, including census forms and enumerator instructions, is available from the Integrated Public Use Microdata Series.
|x||District of Columbia||437,571|
|United States Territories|
|Year of conquest or purchase||Territory||Population|
|1903||Panama Canal Zone||N/A|
|1916||US Virgin Islands||N/A|
|01||New York||New York||5,620,048||Northeast|
|14||Washington||District of Columbia||437,571||South|
|22||Jersey City||New Jersey||298,103||Northeast|
|57||Salt Lake City||Utah||118,110||West|
The original census enumeration sheets were microfilmed by the Census Bureau in the 1940s; after which the original sheets were destroyed.(dead link). 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 1920 census are freely available through the Integrated Public Use Microdata Series. Aggregate data for small areas, together with electronic boundary files, can be downloaded from the National Historical Geographic Information System.
|Wikimedia Commons has media related to 1920 United States Census .|
The United States Census of 2000, conducted by the Census Bureau, determined the resident population of the United States on April 1, 2000, to be 281,421,906, an increase of 13.2% over the 248,709,873 people enumerated during the 1990 Census. This was the twenty-second federal census and was at the time the largest civilly administered peacetime effort in the United States.
The United States Census is a decennial census mandated by Article I, Section 2 of the United States Constitution, which states: "Representatives and direct Taxes shall be apportioned among the several States... according to their respective Numbers.... The actual Enumeration shall be made within three years after the first meeting of the Congress of the United States, and within every subsequent Term of ten Years". Section 2 of the 14th Amendment amended Article I, Section 2 to include that the "respective Numbers" of the "several States" will be determined by "counting the whole number of persons in each State... excluding Indians not taxed...” The United States Census Bureau is responsible for the United States Census. The Bureau of the Census is part of the United States Department of Commerce.
Integrated Public Use Microdata Series (IPUMS) is the world's largest individual-level population database. IPUMS consists of microdata samples from United States (IPUMS-USA) and international (IPUMS-International) census records, as well as data from U.S. and international surveys. The records are converted into a consistent format and made available to researchers through a web-based data dissemination system.
The United States Census of 1990, conducted by the Census Bureau, was the first census to be directed by a woman, Barbara Everitt Bryant. It determined the resident population of the United States to be 248,709,873, an increase of 9.8 percent over the 226,545,805 persons enumerated during the 1980 Census.
The United States Census of 1890 was taken beginning June 2, 1890. It determined the resident population of the United States to be 62,979,766—an increase of 25.5 percent over the 50,189,209 persons enumerated during the 1880 census. The data was tabulated by machine for the first time. The data reported that the distribution of the population had resulted in the disappearance of the American frontier. Most of the 1890 census materials were destroyed in a 1921 fire and fragments of the US census population schedule exist only for the states of Alabama, Georgia, Illinois, Minnesota, New Jersey, New York, North Carolina, Ohio, South Dakota, and Texas, and the District of Columbia.
The United States Census of 1850 was the seventh census of the United States. Conducted by the Census Office, it determined the resident population of the United States to be 23,191,876—an increase of 35.9 percent over the 17,069,453 persons enumerated during the 1840 Census. The total population included 3,204,313 slaves.
The United States Census of 1980, conducted by the Census Bureau, determined the resident population of the United States to be 226,545,805, an increase of 11.4 percent over the 203,184,772 persons enumerated during the 1970 Census. It was the first census in which a state – California – recorded a population of 20 million people, as well as the first in which all states recorded populations of over 400,000.
The United States Census of 1800 was the second Census conducted in the United States. It was conducted on August 4, 1800.
The United States Census of 1830, the fifth census undertaken in the United States, was conducted on June 1, 1830. The only loss of census records for 1830 involved some countywide losses in Massachusetts, Maryland, and Mississippi.
The United States Census of 1860 was the eighth Census conducted in the United States starting June 1, 1860, and lasting five months. It determined the population of the United States to be 31,443,322, in 33 states and 10 organized territories. This was an increase of 35.4 percent over the 23,191,876 persons enumerated during the 1850 Census. The total population included 3,953,762 slaves.
The United States Census of 1880 conducted by the Census Bureau during June 1880 was the tenth United States Census. It was the first time that women were permitted to be enumerators. The Superintendent of the Census was Francis Amasa Walker. This was the first census in which a city – New York – recorded a population of over one million.
The United States Census of 1870 was the ninth United States Census. It was conducted by the Census Bureau from June 1, 1870 to August 23, 1871. The 1870 Census was the first census to provide detailed information on the African-American population, only five years after the culmination of the Civil War when slaves were granted freedom. The total population was 38,925,598 with a resident population of 38,558,371 individuals, a 22.62% increase from 1860. The 1870 Census' population estimate was controversial, as many believed it underestimated the true population numbers, especially in New York and Pennsylvania.
The United States Census of 1900, 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 21.0 percent over the 62,979,766 persons enumerated during the 1890 Census.
The United States Census of 1910, conducted by the Census Bureau on April 15, 1910, determined the resident population of the United States to be 92,228,496, an increase of 21.0 percent over the 76,212,168 persons enumerated during the 1900 Census. The 1910 Census switched from a portrait page orientation to a landscape orientation.
The United States Census of 1930, conducted by the Census Bureau one month from April 1, 1930, determined the resident population of the United States to be 122,775,046, an increase of 13.7 percent over the 106,021,537 persons enumerated during the 1920 Census.
The United States Census of 1940, conducted by the Census Bureau, determined the resident population of the United States to be 132,164,569, an increase of 7.3 percent over the 1930 population of 123,202,624 people. The census date of record was April 1, 1940. A number of new questions were asked including where people were 5 years before, highest educational grade achieved, and information about wages. This census introduced sampling techniques; one in 20 people were asked additional questions on the census form. Other innovations included a field test of the census in 1939. This was the first census in which every state (48) had a population greater than 100,000.
The United States Census of 1950, conducted by the Census Bureau, determined the resident population of the United States to be 150,697,361, an increase of 14.5 percent over the 131,669,275 persons enumerated during the 1940 Census. This was the first census in which:
The United States Census of 1960, conducted by the Census Bureau, determined the resident population of the United States to be 179,323,175, an increase of 18.5 percent over the 151,325,798 persons enumerated during the 1950 Census. This was the first census in which all states recorded a population of over 200,000.
The United States Census of 1970, conducted by the Census Bureau, determined the resident population of the United States to be 203,392,031, an increase of 13.4 percent over the 179,323,175 persons enumerated during the 1960 Census. This was the first census since 1800 in which New York was not the most populous state – California overtook it in population in November 1962. This was also the first census in which all states recorded a population of over 300,000, and the first in which a city in the geographic South recorded a population of over 1 million (Houston).
Marion Bernice Yazdi, born October 9, 1902 at Marcellus, Cass County, Michigan, died February 2, 1996 at Natick, Middlesex County, Massachusetts or at Wellesley, Norfolk County, Massachusetts, was the first Baháʼí student at the University of California at Berkeley, and at Stanford University. She was a daughter of Crowell E. and Elizabeth Carpenter, natives of Michigan and Ohio, respectively, who moved from Schoolcraft, Kalamazoo County, Michigan to Santa Paula, Ventura County, California between the 1910 and 1920 censuses.