Main Page | See live article | Alphabetical index The Iowa tribe are a tribe of Native Americans. Together with the Missouri, the Omaha, the Oto and the Ponca they were once part of the Winnebago. Their estimated population of 1100 (in 1760) dropped to 800 (in 1804), mainly due to smallpox. In 1824, the Iowa were moved to a reservation in Kansas. Today, some of them also live in Oklahoma. As of 1990, their population is ~1500. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.