| United States|
| April 1, 1930|
The Fifteenth United States Census, 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.
1930 United States Census Wikipedia
The 1930 Census collected the following information:address
relationship to head of family
home owned or rented
if owned, value of home
if rented, monthly rent
whether owned a radio set
whether on a farm
marital status and, if married, age at first marriage
birthplace of person, and their parents
if foreign born:
language spoken at home before coming to the U. S.
year of immigration
ability to speak English
occupation, industry and class of worker
whether at work previous day (or last regular work day)
whether of full or mixed blood
Full documentation for the 1930 census, including census forms and enumerator instructions, is available from the Integrated Public Use Microdata Series.
The original census enumeration sheets were microfilmed by the Census Bureau in 1949; after which the original sheets were destroyed. The microfilmed census is located on 2,667 rolls of microfilm, and available from the National Archives and Records Administration. Several organizations also host images of the microfilmed census online, and digital indices.
Microdata from the 1930 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.