Most working residents leave Eureka for work: only 8% work in town. The top destinations are St. Louis (14%), Chesterfield (8%) and Maryland Heights (4%). Half commute less than 17 miles.
Eureka’s public schools outperform 92% of Missouri districts
The public schools Eureka’s kids attend, from kindergarten through graduation, outperform 92% of Missouri’s districts on state tests and graduation. Among towns with similar incomes, they rank near the top.
More children than Missouri overall, and 53% of adults have a four-year degree
Children under 18 are 30% of residents (22% statewide); adults 18 to 34 are 17% of residents (22% statewide). 53% of adults 25 and older have a bachelor’s degree or more, vs 32% across Missouri.
37.5median age · MO 39
EurekaMissouriUnited States
Ages · share of residents
18%
<1010–1718–2425–3435–4445–5455–6465–7475+
Education · adults 25 and older
No diploma3%
High school15%
Some college20%
Associate’s10%
Bachelor’s30%
Graduate22%
Ages and education in Eureka
Eureka
MO
U.S.
Under 10
17.8%
11.9%
11.6%
10 to 17
12.6%
10.4%
10.3%
18 to 24
5%
9.1%
9.1%
25 to 34
11.7%
13.2%
13.7%
35 to 44
13.9%
12.8%
13.2%
45 to 54
10.6%
11.6%
12.2%
55 to 64
15%
13%
12.7%
65 to 74
8%
10.6%
10.2%
75 and older
5.5%
7.3%
7%
No diploma
3.4%
8.1%
10.4%
High school
15.1%
30.2%
26%
Some college
19.6%
20.8%
19.1%
Associate’s
9.5%
8.4%
8.8%
Bachelor’s
30.2%
19.8%
21.6%
Graduate
22.3%
12.6%
14.1%
U.S. Census Bureau · ACS 2020-2024 5-year estimatesBy the numbers →
Climate
Four seasons, hot summers
Eureka has chilly winters and warm summers. A typical July afternoon reaches 89°, a January night drops to 23°, and about 11 inches of snow falls in a normal winter.
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).