Missouri Jefferson County St. Louis County
Eureka
A city in Jefferson County, Missouri — population 11,323 as of 2020.
This Afternoon
72°F
Patchy Fog65% precip
Tonight
65°F
Patchy Fog then Widespread Drizzle72% precip
Sunday
79°F
Partly Sunny13% precip
Sunday Night
64°F
Mostly Clear3% precip
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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