Agencies of the Bureau of Indian Affairs

In the United States, the office which created and maintained the largest amount of records of the American Indians was the field office of the Bureau of Indian Affairs (BIA) called the agency. Agencies of the Bureau of Indian Affairs in the United States are administrative offices supervising the relationship between and among American Indians and others. Usually an agency operated on a reservation and was responsible for only that reservation. Occasionally, an agency had responsibility for several groups of Native Americans.

Some field offices of the Bureau of Indian Affairs did not achieve the level of agency, but operated as a sub-agency, reporting to an agency, a school, or a superintendency of the BIA.

Pages for individual agencies are listed alphabetically under the category of "American Indian Agencies" below. They are also cross-referenced under the topic "American Indians" for each state. Pages for individual sub-agencies are listed alphabetically under the category of "American Indian Subagencies" and are cross-references under the topic of "American Indians' for each state where they existed.