Norwalk is a city in Warren County, with some small portions extending into Polk County, in the U.S. state of Iowa. The population was 8,945 at the 2010 census. The city is part of the Des Moines - West Des Moines Metropolitan Statistical Area and is located just south of the Des Moines International Airport.HistoryIt is named after Norwalk, Ohio.GeographyAccording to the United States Census Bureau, the city has a total area of 11.09sqmi, of which, 10.74sqmi is land and 0.35sqmi is water.Norwalk holds the unofficial record for the largest amount of rainfall in a 24-hour period for any town in Iowa, with more than 9 inches falling June 9–10, 2011.Demographics2010 censusAs of the census of 2010, there were 8,945 people, 3,261 households, and 2,472 families residing in the city. The population density was 832.9PD/sqmi. There were 3,450 housing units at an average density of 321.2/sqmi. The racial makeup of the city was 96.9% White, 0.5% African American, 0.2% Native American, 0.6% Asian, 0.4% from other races, and 1.3% from two or more races. Hispanic or Latino of any race were 2.5% of the population.
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