Ratified Indian Treaty 139: Sioux, Chippewa, Sauk and Fox, Menominee, Iowa, Winnebago, and Part of Ottawa, Chippewa and Potawatomi of Illinois - Prairie du Chien, Michigan Territory, August 19, 1825
Ratified Indian Treaty 159: Sauk and Fox, Sioux (Mdewakanton, Wahpacoota, Wahpeton, Sisseton, Yankton and Santee), Omaha, Iowa, Oto and Missouri - Prairie du Chien, Michigan Territory, July 15, 1830
Ratified Indian Treaty 74: Iowa - Portage des Sioux, September 16, 1815
Ratified Indian Treaty 122: Iowa - Washington, DC, August 4, 1824
Ratified Indian Treaty 139: Sioux, Chippewa, Sauk and Fox, Menominee, Iowa, Winnebago, and Part of Ottawa, Chippewa and Potawatomi of Illinois - Prairie du Chien, Michigan Territory, August 19, 1825
Ratified Indian Treaty 159: Sauk and Fox, Sioux (Mdewakanton, Wahpacoota, Wahpeton, Sisseton, Yankton and Santee), Omaha, Iowa, Oto and Missouri - Prairie du Chien, Michigan Territory, July 15, 1830
Cession: 151
Cession: 152
Cession: 153
Cession: 154
Cession: 155
Cession: 292
Ratified Indian Treaty 211: Iowa and Sauk and Fox of the Missouri (West of Missouri) - Fort Leavenworth, September 17, 1836
Cession: 323
Ratified Indian Treaty 222: Kiowa, Kataka and Tawakaro - Fort Gibson, May 26, 1837
Ratified Indian Treaty 229: Iowa - St. Louis, Missouri, November 23, 1837
Ratified Indian Treaty 233: Iowa - Great Nemaha Subagency, October 19, 1838
Ratified Indian Treaty 243: Sauk and Fox - Sauk and Fox Agency, Iowa Territory, October 11, 1842
Ratified Indian Treaty 262: Comanche, Kiowa and Apache - Fort Atkinson, Indian Territory, July 27, 1853
Ratified Indian Treaty 270: Iowa - Washington, DC, May 17, 1854
Ratified Indian Treaty 316: Sauk and Fox of the Missouri and Iowa - Great Nemaha Agency, Nebraska Territory, March 6, 1861
Ratified Indian Treaty 343: Kiowa and Comanche - Little Arkansas River, Kansas, October 18, 1865
Ratified Indian Treaty 364: Kiowa and Comanche - Medicine Lodge Creek, Kansas, October 21, 1867
Ratified Indian Treaty 365: Kiowa, Comanche, and Apache - Medicine Lodge Creek, Kansas, October 21, 1867