Eureka, Missouri Map and Directory
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According to the United States Census Bureau, Eureka is a City that is located in St. Louis County, Missouri at 38.50 degrees North and 90.63 degrees West.
The city's time zone is America/Chicago, and the city's primary telephone area code is 636.
The land area of Eureka is about 10.67 square miles, whereas the water area of the city is about 0.10 square miles.
The Census Bureau estimates that Eureka had about 10,946 residents in 2019, which is approximately 1,026 people per square mile of land area.
According to recent American Community Survey data, the median household income in Eureka was about $111,058 per year.
The Missouri counties map at upper right shows St. Louis County, highlighted in red. Use the menu below to display interactive maps of Eureka, either in a frame on this page or in full-screen mode.
Use the menu below to display categorized Eureka directories.
| Eureka Directory Page: | Dentists |
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* Parenthesized numbers indicate economic activity levels.
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