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Clayton, Missouri Map and Directory


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St. Louis County, Missouri locator map According to the United States Census Bureau, Clayton is a City that is located in St. Louis County, Missouri at 38.64 degrees North and 90.32 degrees West.  The city's time zone is America/Chicago, and the city's primary telephone area code is 314.  The land area of Clayton is about 2.48 square miles, whereas the water area of the city is about 0.00 square miles. 

The Census Bureau estimates that Clayton had about 16,805 residents in 2017, which is approximately 6,776 people per square mile of land area. 

According to recent American Community Survey data, Clayton had 5,900 total estimated households and the median household income was about $95,500 per year. 

The Missouri counties map at upper right shows St. Louis County, highlighted in red.  Use the menu below to display interactive maps of Clayton, either in a frame on this page or in full-screen mode. 

Use the menu below to display categorized Clayton directories. 

Clayton Directory Page: Attorneys

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* Parenthesized numbers indicate economic activity levels.

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