Eureka city, Missouri Demographics & Population 2026

Population Overview

Eureka city is a small city located in Missouri. The total population is 12,371. It ranks as the 74th most populous out of 1,062 cities and towns in Missouri.

Age Demographics

The median age in Eureka city is 37.5 years. This is 4% lower than the state median of 38.9 years. With 31.1% of the population under 18, Eureka city has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Eureka city is $108,947. This is 58% higher than the state median of $68,920. Compared to the national median of $78,538, household income here is 39% higher. The poverty rate stands at 6.2%. This is 51% lower than the state poverty rate of 12.6%. The unemployment rate is 2.9%. This is 30% lower than the state rate of 4.1%. The median home value is $352,200. Housing costs are 63% higher than the state median of $215,600. The home-value-to-income ratio is 3.2x. 81.1% of occupied housing units are owner-occupied. This homeownership rate is 19% higher than the state average of 67.9%.

Race & Ethnicity

Eureka city has a predominantly White (non-Hispanic) population, comprising 86.7% of all residents. Hispanic or Latino residents account for 2.3%. The Black or African American population (0.4%) is well below the state average of 11.0%. The Hispanic or Latino population (2.3%) is well below the state average of 5.1%.

Education

50.9% of residents aged 25 and older hold a bachelor's degree or higher. This places Eureka city in the top 10% of all cities in the state for educational attainment. This is 60% higher than the state rate of 31.9%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 96.8%. Notably, 20.6% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Eureka city, Missouri is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against Missouri state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,062 Census-designated places in Missouri. For official data, visit data.census.gov.