Bettendorf is a city in Scott County, Iowa, United States. Bettendorf is the fifteenth largest city in the U.S. state of Iowa and the fourth largest city in the "Quad Cities". As of the 2010 United States Census the population grew to 33,217. Bettendorf is one of the Quad Cities, along with neighboring Davenport and the Illinois cities of Moline, East Moline and Rock Island. The Quad Cities has a population estimate of 381,342. In 2011, Bettendorf was named America's 95th Best Town by CNNMoney.