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About Eureka

City in Missouri, US
11,646Population
10.8 sq miArea
456 ftElevation

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 Mid America Adventure (formerly known as Six Flags St. Louis).

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From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)

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Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/18 · 2025-01-01