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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 16,747 residents in 2019, which is approximately 6,753 people per square mile of land area. 

According to recent American Community Survey data, the median household income in Clayton was about $107,596 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 Products and Services Directory

Selected Clayton, Missouri Listings

These representative Clayton listings in 63105 provide a window into the city's cultural environment and economic climate.

A Floral Gallery
  • Florists
Bernhardt & Wichmer
  • Legal Services
  • Administrative & Governmental Law Attorneys
  • Immigration & Naturalization Consultants
Caf? Napoli
  • Italian Restaurants
Carson Law Firm
  • Family Law Attorneys
City Coffee House & Creperie
  • Coffee & Tea Shops
  • French Restaurants
Rosenthal Packman & Co PC
  • Accountants
  • Certified Public Accountants
  • Tax Return Preparation
Tony Lamartina Plumbing Co Inc
  • Plumbing Contractors
  • Sewer & Drain Cleaning Contractors

Nearby Missouri Cities and Towns *

* Parenthesized numbers indicate economic activity levels.

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