1900 Federal Indian Census Offers A Wealth of Information
This Census is available on microfilm
In all states but Oklahoma, the 1900 Federal Census has a separate Indian census at the end of each county which lists all that county's Indian population.
In Oklahoma (Indian Territory)
1) Areas which were outside the jurisdiction of the Five Civilized Nations, the Indian population will be found at the end of the listings of microfilm (#1241344).
2) The Indian population of the Five Civilized Nations* are listed in the 1900 Census after the state of Wyoming (the last state alphabetically). Cherokee Nation is on microfilms: #1241843, #1241844, #1241845, #1241846.