St. Louis County, Missouri
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St. Louis County is located in eastern Missouri. It is bounded by the City of St. Louis and the Mississippi River to the east, the Missouri River to the north, and the Meramec River to the south. As o
Clayton, the St. Louis County seat
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The Old Courthouse was built in downtown St. Louis from 1839 to 1856 as the second purpose-built county courthouse for St. Louis County.
Local politician David H. Armstrong was a strong supporter of the separation of the city of St. Louis from St. Louis County.
Greater St. Louis
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Greater St. Louis is the 23rd-largest metropolitan statistical area in the United States with an MSA population of more than 2.8 million, and almost 3 million CSA the largest in Missouri, and the seco
St. Louis County, Missouri
…in Missouri, and was estimated to be 987,059 in 2023. Its county seat is Clayton, while the largest city is Florissant. The county is included in the St. Louis, MO–IL metropolitan statistical area. After Great Britain took over former French territory east of the Mississippi River, many ethnic French colonists moved…
A NASA image of the Greater St. Louis area at night in December 2013
Brookings Hall, the administrative building for Washington University in St. Louis