St. Louis County, Missouri
County in Missouri, United States
About
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 of the 2020 census, the population was 1,004,125, making it the most populous county 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 west. They settled the area of St. Louis County and founded the city of St. Louis in the late 1700s. The US acquired this territory in 1803 with the Louisiana Purchase.
Nearby
More to see within walking distance
Creve Coeur, Missouri
City in St. Louis County, Missouri, United States
1.6 mi awayCongregation Temple Israel (Creve Coeur, Missouri)
Reform synagogue in Creve Coeur, Missouri, United States
1.4 mi awayTemple Emanuel (Creve Coeur, Missouri)
Reform synagogue in Missouri, U.S.
0.4 mi awayCovenant Theological Seminary
Seminary of the Presbyterian Church in America
0.7 mi awayFrontenac, Missouri
City in Missouri, United States
1.3 mi awaySt. Louis Missouri Temple
Notable place
1.3 mi awayPlaces to eat nearby
Finding places to eat…
Traveler reviews
Tickets & tours
Tickets and tours for St. Louis County, Missouri
We may earn a commission from some of these links, at no extra cost to you. Learn more
Photos from Unsplash, Wikipedia and Wikimedia Commons (CC BY-SA); facts from Wikipedia; maps © OpenStreetMap contributors, weather from Open-Meteo. Huginn’s tips are AI-written — check prices, hours and entry rules before you go.