Clayton is an inner-ring suburb of St. Louis and the county seat of St. Louis County, Missouri. The population was 15,939 at the 2010 census. The city was organized in 1877 and is named after Ralph Clayton, who donated the land for the courthouse. According to the United States Census Bureau, the city has a total area of 2.5 square miles , all of it land. The architecture of central Clayton reflects its economic activity and eras of growth. An impressive collection of mid-century Modernist low and high rise structures contrast with earlier mansions, stores and flats. In the St. Louis region,... Clayton is well known for housing a wealthy and educated young professional, often dual-income population. As of the census of 2000, there were 12,825 people, 5,370 households, and 2,797 families residing in the city. The population density was 5,164.4 people per square mile . There were 5,852 housing units at an average density of 2,356.5 per square mile . The racial makeup of the city was 84.94% White, 7.77% Black or African American, 0.12% Native American, 5.62% Asian, 0.03% Pacific Islander, 0.29% from other races, and 1.22% from two or more races.
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