Clayton, Missouri

Clayton, Missouri
Clayton high-rises seen from the Moorlands
Location in Missouri
U.S. Census Map
Coordinates: 38°38′40″N 90°19′49″W / 38.64444°N 90.33028°W / 38.64444; -90.33028
CountryUnited States
StateMissouri
CountySt. Louis
Settled1877
Incorporated1913
Government
  TypeMayor-council city
  MayorBridget McAndrew
Area
  Total
2.51 sq mi (6.49 km2)
  Land2.51 sq mi (6.49 km2)
  Water0.00 sq mi (0.00 km2)
Elevation
551 ft (168 m)
Population
 (2020)
  Total
17,355
  Density6,919.9/sq mi (2,671.8/km2)
Time zoneUTC-6 (Central)
  Summer (DST)UTC-5 (Central)
ZIP code
63105
Area code314
FIPS code29-14572
GNIS feature ID2393548
WebsiteCity of Clayton

Clayton is a city in and the county seat of St. Louis County, Missouri, and borders the independent city of St. Louis. The population was 17,355 at the 2020 census. Organized in 1877, the city was named after Ralph Clayton, a citizen who donated the land for the St. Louis County courthouse.