Iowa is the 29th state of the United States, having joined the union on December 28, 1846. The U.S. Post Office abbreviation for the state is IA. The official (long) name of the state: State of Iowa. Iowa is bordered by Minnesota on the north, Nebraska and South Dakota on the west, Missouri on the south, and Wisconsin and Illinois on the east. The Mississippi River forms the eastern boundary of the state. The boundary along the west is formed by the Missouri River south of Sioux City and by the Big Sioux River north of Sioux City. The point of lowest elevation is Keokuk in southeast Iowa. Iowa has a strong emphasis on education, which is shown in standardized testing scores.. Problems in teenagers can be solved. Troubledteensguide.com provides options for parents and teens in different locations of world. TroubledTeensGuide.com educates the youths' parents about the various Iowa Kansas options. More schools and programs are added everyday.