This report presents the statistics of the Indian population of the United States collected at the Fifteenth Decennial census, taken as of April 1, 1930, with comparisons as far as practicable with the census of 1920, and with the special enumeration of Indians made as a part of the census of 1910.
The statistics of the Indian population in 1930 were obtained from the general population schedule. In the enumeration of Indians, however, instead of asking for the State or country of birth of the parents, the enumerator was instructed to ask whether the Indian was of full or mixed blood and for the tribe to which he or she belonged. A special tabulation was made of the Indian population, showing age, school attendance, illiteracy, marital condition, and ability to speak English, by tribe and blood.
Census statistics date back to 1790 and reflect the growth and change of the United States. Past census reports contain some terms that today’s readers may consider obsolete and inappropriate. As part of our goal to be open and transparent with the public, we are improving access to all Census Bureau original publications and statistics, which serve as a guide to the nation's history.