United States of America. With over six million residents, it is ranked 15th in population and 17th in population density. It is 38th in land area.Indiana is a diverse state with a few large urban areas and a number of smaller industrial cities. It is best known for the Indianapolis 500 American automobile race, held annually over the Memorial Day weekend and a strong basketball tradition. Residents of Indiana are called Hoosiers.The state's name means "Land of the Indians" and Angel Mounds State Historic Site, one of the best preserved prehistoric Native American sites in the United States, can be found in southern Indiana.