Eureka

Also known as Eureka, Missouri, Eureka, MO

city located in St. Louis County, Missouri, United States

Key facts

Country: United States
State: Missouri
Counties: St. Louis , Jefferson
Townships: Meramec , Meramec
Mayor: Sean Flower
Total: 11.22 sq mi (29.06 km )
Land: 11.05 sq mi (28.62 km )
Water: 0.17 sq mi (0.44 km )
Elevation: 476 ft (145 m)
Density: 1,053.7/sq mi (406.85/km )
Time zone: UTC−6 ( Central (CST) )
Summer dst: UTC−5 (CDT)
Fips code

Article

38°30′10″N 90°38′42″W / 38.502736°N 90.645075°W / 38.502736; -90.645075

Eureka is a city mainly in St. Louis County, with a small portion in Jefferson County, Missouri, adjacent to Wildwood and Pacific. It is in the extreme southwest of the Greater St. Louis metro area. As of the 2020 census, the city had a population of 11,646. Since 1971, Eureka has been known as the home of the amusement park Six Flags St. Louis.