Missouri Jefferson County St. Louis County
Eureka
A city in St. Louis County, Missouri — population 11,323 as of 2020.
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This Afternoon
82°F
Cloudy14% precip
Tonight
65°F
Slight Chance Showers And Thunderstorms then Patchy Fog16% precip
Saturday
90°F
Patchy Fog then Mostly Sunny8% precip
Saturday Night
66°F
Partly Cloudy12% precip
In and around Eureka
See & do
+60 more on the mapEat, drink & stay
- 5 Star Donut Delivery
- Eckelkamp Developments Llc
- Eureka Wine House
- Altos Cantina Mexican Kitchen
- Eureka-Pacific Elks Lodge
Shops & services
+108 more on the mapMusicians & bands near Eureka →
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Eureka by the numbers
Population
11,323Population figure, 2020
Households & income
- Area
- 11.05 sq mi (28.62 km²), 0.17 sq mi water
- Median age
- 37.5
- Households
- 4,690
- Persons per household
- 2.7
- Median household income
- $108,394
- Median house value
- $379,200
Municipal office
- Office
- BUILDING DEPARTMENT ASSISTANT
- Address
- PO BOX 125, EUREKA, MO 63025